Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-ee6be08b",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.060007",
    "updatedAt": "2025-09-29T07:07:49.060024",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "853bd85f-66c8-4ed1-bd86-38f7bb24c02c",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        380,
        240
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "0c06c484-7f84-48a7-803c-1788c15582d5",
      "name": "Write Result File to Disk",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
        980,
        240
      ],
      "parameters": {
        "options": {},
        "fileName": "document.pdf",
        "operation": "write",
        "dataPropertyName": "=data"
      },
      "typeVersion": 1,
      "notes": "This readWriteFile node performs automated tasks as part of the workflow."
    },
    {
      "id": "3d75bdd7-5b69-421a-a0e4-a2f123feca08",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        720,
        100
      ],
      "parameters": {
        "width": 218,
        "height": 132,
        "content": "## Authentication\nConversion requests must be authenticated. Please create \n[ConvertAPI account to get authentication secret]({{ $env.API_BASE_URL }}"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "ab417c81-d9ca-4fd2-9f39-d741738f47ee",
      "name": "Download PPTX File",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        580,
        240
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
    ...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-e72c78dc",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.063492",
    "updatedAt": "2025-09-29T07:07:49.063511",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "1ef81384-b424-49bc-a6b5-922d1b0f5a7b",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        340,
        240
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "3052f841-9e65-4284-a84d-3bb5d0c146ea",
      "name": "Write Result File to Disk",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
        1200,
        240
      ],
      "parameters": {
        "options": {},
        "fileName": "document.pdf",
        "operation": "write",
        "dataPropertyName": "=data"
      },
      "typeVersion": 1,
      "notes": "This readWriteFile node performs automated tasks as part of the workflow."
    },
    {
      "id": "852e30be-e145-4e73-b646-94e2ceec536c",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        720,
        100
      ],
      "parameters": {
        "width": 218,
        "height": 132,
        "content": "## Authentication\nConversion requests must be authenticated. Please create \n[ConvertAPI account to get authentication secret]({{ $env.API_BASE_URL }}"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "69f4d125-8990-4c98-9743-9f877325c958",
      "name": "Download PDF File",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        580,
        240
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
    ...

Output:
In node 'Google Drive', the parameter 'name' contains an expression that references undefined data.

**Faulty Expression**: `={{ $items[999].json.value }}`
**Original Value**: `test-password.pdf`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Google Drive' parameter 'name'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-a0ba4c03",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.073571",
    "updatedAt": "2025-09-29T07:07:49.073582",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "7f4ecd85-1f6e-418e-a224-1a690741192b",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        380,
        240
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "43a0e1f6-f9d1-4be2-8e84-8cf8be4add8e",
      "name": "Write Result File to Disk",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
        1200,
        240
      ],
      "parameters": {
        "options": {},
        "fileName": "document.pdf",
        "operation": "write",
        "dataPropertyName": "=data"
      },
      "typeVersion": 1,
      "notes": "This readWriteFile node performs automated tasks as part of the workflow."
    },
    {
      "id": "1094bca9-c48c-45bf-8cd4-17f074cd269a",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        720,
        100
      ],
      "parameters": {
        "width": 218,
        "height": 132,
        "content": "## Authentication\nConversion requests must be authenticated. Please create \n[ConvertAPI account to get authentication secret]({{ $env.API_BASE_URL }}"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "3e168f2e-f811-489a-b1ad-4973a86a2a6a",
      "name": "Download Image",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        580,
        240
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
       ...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.

Add validation for empty or null input data.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-a3ab523c",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.096087",
    "updatedAt": "2025-09-29T07:07:49.096101",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "30aca7bf-cf50-4182-97b5-0e8f006e1429",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        380,
        240
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "f43cc22f-00c0-4881-b610-ade09a3a2340",
      "name": "Write Result File to Disk",
      "type": "n8n-nodes-base.readWriteFile",
      "position": [
        1200,
        240
      ],
      "parameters": {
        "options": {},
        "fileName": "document.pdf",
        "operation": "write",
        "dataPropertyName": "=data"
      },
      "typeVersion": 1,
      "notes": "This readWriteFile node performs automated tasks as part of the workflow."
    },
    {
      "id": "1fdac712-f93c-4001-9510-d533a81304e3",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        720,
        100
      ],
      "parameters": {
        "width": 218,
        "height": 132,
        "content": "## Authentication\nConversion requests must be authenticated. Please create \n[ConvertAPI account to get authentication secret]({{ $env.API_BASE_URL }}"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "b79ad903-15c2-48b8-8108-e9e3ec8e6134",
      "name": "Download PDF File",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        580,
        240
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
    ...

Output:
The workflow has a broken data flow. The node 'f43cc22f-00c0-4881-b610-ade09a3a2340' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'f43cc22f-00c0-4881-b610-ade09a3a2340'.

**Impact**: Data from 'f43cc22f-00c0-4881-b610-ade09a3a2340' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from 'f43cc22f-00c0-4881-b610-ade09a3a2340' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "f43cc22f-00c0-4881-b610-ade09a3a2340": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'f43cc22f-00c0-4881-b610-ade09a3a2340' to the workflow.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta" {
    "instanceId": "workflow-74082d9c",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.101854",
    "updatedAt": "2025-09-29T07:07:49.101903",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "192d3e4f-6bb0-4b87-a1fa-e32c9efb49cc",
      "name": "When clicking \"Test workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        336,
        34
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "32a7a772-76a6-4614-a6ab-d2b152a5811f",
      "name": "OpenAI Chat Model1",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1220,
        180
      ],
      "parameters": {
        "model": "gpt-4o",
        "options": {
          "temperature": 0
        }
      },
      "credentials": {
        "openAiApi": {
          "id": "8gccIjcuf3gvaoEr",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "8c444314-ed7d-4ca0-b0fa-b6d1e964c698",
      "name": "Get Applicable Rows",
      "type": "n8n-nodes-base.airtable",
      "position": [
        516,
        34
      ],
      "parameters": {
        "base": {
          "__rl": true,
          "mode": "list",
          "value": "appbgxPBurOmQK3E7",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "Building Inventory Survey Example"
        },
        "table": {
          "__rl": true,
          "mode": "id",
          "value": "tblEHkoTvKpa4Aa0Q"
        },
        "options": {},
        "operation": "search",
        "returnAll": false,
        "filterByFormula": "AND(Image!=\"\", AI_status=FALSE())"
      },
      "credentials...

Output: The JSON is missing a colon between a key and its value. JSON requires colons to separate keys from values.

Add the missing colon after the property name.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-7f64a0f0",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.072706",
    "updatedAt": "2025-09-29T07:07:49.072734",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "abccacce-bbdc-428e-94e0-19996c5bfe02",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1720,
        160
      ],
      "parameters": {
        "color": 7,
        "width": 319.5392879244982,
        "height": 218.88813194060202,
        "content": "### AI agent that can scrape webpages\nRemake of {{ $env.WEBHOOK_URL }}\n\n**Changes**:\n* Replaces Execute Workflow Tool and Subworkflow\n* Replaces Response Formatting"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "9fc05c79-5a2d-4ac4-a4f5-32b9c1b385e1",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1340,
        340
      ],
      "parameters": {
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "8gccIjcuf3gvaoEr",
          "name": "OpenAi account"
        }
      },
      "typeVersion": 1,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "45c9bdaf-d51e-4026-8911-4b04c5473b06",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1720,
        560
      ],
      "parameters": {
        "color": 7,
        "width": 365.9021913627245,
        "height": 245.35379866205295,
        "content": "### Allow your AI to call an API to fetch data\nRemake of {{ $env.API_BASE_URL }}\n\n**Changes**:\n* Replaces Execute Workflow Tool and Subworkflow\n* Replaces Manual Query Params Definitions\n* Replaces Response Fo...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta" {
    "instanceId": "workflow-64c47810",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.124028",
    "updatedAt": "2025-09-29T07:07:49.124048",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "141638a4-b340-473f-a800-be7dbdcff131",
      "name": "When clicking \"Test workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        695,
        380
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "6ccdaca5-f620-4afa-bed6-92f3a450687d",
      "name": "Google Drive",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        875,
        380
      ],
      "parameters": {
        "fileId": {
          "__rl": true,
          "mode": "list",
          "value": "0B43u2YYOTJR2cC1BRkptZ3N4QTk4NEtxRko5cjhKUUFyemw0",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "0B0A0255.jpeg"
        },
        "options": {},
        "operation": "download"
      },
      "credentials": {
        "googleDriveOAuth2Api": {
          "id": "yOwz41gMQclOadgu",
          "name": "Google Drive account"
        }
      },
      "typeVersion": 3,
      "notes": "This googleDrive node performs automated tasks as part of the workflow."
    },
    {
      "id": "b0c2f7a4-a336-4705-aeda-411f2518aaef",
      "name": "Get Color Information",
      "type": "n8n-nodes-base.editImage",
      "position": [
        1200,
        200
      ],
      "parameters": {
        "operation": "information"
      },
      "typeVersion": 1,
      "notes": "This editImage node performs automated tasks as part of the workflow."
    },
    {
      "id": "3e42b3f1-6900-4622-8c0d-2d9a27a7e1c9",
      "name": "Resize Image",
      "type": "n8n-nodes-base.editI...

Output: The JSON is missing a colon between a key and its value. JSON requires colons to separate keys from values.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-fab331d3",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.107494",
    "updatedAt": "2025-09-29T07:07:49.107514",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "382dddd4-da50-49fa-90a2-f7d6d160afdf",
      "name": "When clicking \"Test workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        920,
        280
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "efa8f415-62f7-43b3-a76a-a2eabf779cb8",
      "name": "Map Workflows & Credentials",
      "type": "n8n-nodes-base.set",
      "position": [
        1360,
        280
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "0fd19a68-c561-4cc2-94d6-39848977e6d2",
              "name": "workflow_id",
              "type": "string",
              "value": "={{ $json.id }}"
            },
            {
              "id": "a81f9e6f-9c78-4c3d-9b79-e820f8c5ba29",
              "name": "workflow_name",
              "type": "string",
              "value": "={{ $json.name }}"
            },
            {
              "id": "58ab0f2f-7598-48de-bea1-f3373c5731fe",
              "name": "credentials",
              "type": "array",
              "value": "={{ $json.nodes.map(node => node.credentials).compact().reduce((acc,cred) => { const keys = Object.keys(cred); const items = keys.map(key => ({ type: key,  ...cred[key] })); acc.push(...items); return acc; }, []) }}"
            }
          ]
        }
      },
      "typeVersion": 3.3,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "9e9b4f9c-12b7-47ba-8cf4-a9818902a538",
      ...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.

Add rate limiting protection with Wait nodes and retry logic.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "TOTP VALIDATION (WITHOUT CREATING CREDENTIAL)",
  "nodes": [
    {
      "id": "56f102c4-5b84-4e30-955c-0ea1221c328f",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        480,
        680
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "4f562819-ee42-42ad-b821-aff2cbebbc0f",
      "name": "TOTP VALIDATION",
      "type": "n8n-nodes-base.code",
      "position": [
        920,
        680
      ],
      "parameters": {
        "language": "python",
        "pythonCode": "import hmac\nimport hashlib\nimport time\nimport base64\n\ndef base32_decode(key):\n    \"\"\"Decodes a base32 key into bytes\"\"\"\n    key += '=' * (-len(key) % 8)  # Add necessary '=' for valid length\n    return base64.b32decode(key.upper(), casefold=True)\n\ndef generate_totp(secret, interval=30, digits=6):\n    \"\"\"Generates a TOTP code based on a secret key\"\"\"\n    interval_count = int(time.time() // interval)\n    interval_bytes = interval_count.to_bytes(8, byteorder='big')\n\n    hmac_hash = hmac.new(secret, interval_bytes, hashlib.sha1).digest()\n    \n    offset = hmac_hash[-1] & 0x0F\n    binary_code = ((hmac_hash[offset] & 0x7F) << 24 |\n                   (hmac_hash[offset + 1] & 0xFF) << 16 |\n                   (hmac_hash[offset + 2] & 0xFF) << 8 |\n                   (hmac_hash[offset + 3] & 0xFF))\n    \n    otp_code = binary_code % (10 ** digits)\n    \n    # Format with leading zeros if necessary\n    otp_code_str = str(otp_code).zfill(digits)\n    \n    return otp_code_str\n\ndef verify_totp(secret, code, interval=30, digits=6):\n    \"\"\"Checks whether the TOTP code is valid\"\"\"\n    secret_bytes = base32_decode(secret)\n    generated_code = generate_totp(secret_bytes, interval, digits)\n    \n    return generated_code == code\n\n# Example of use\nsecret = _...

Output:
The node 'Sticky Note' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Sticky Note'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-1e3b323f",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.145781",
    "updatedAt": "2025-09-29T07:07:49.145795",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "f4570aad-db25-4dcd-8589-b1c8335935de",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        20,
        5220
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "675243b0-080f-4d5e-a0ca-a0fe0e7c04a9",
      "name": "Sticky Note9",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        185,
        5140
      ],
      "parameters": {
        "color": 7,
        "width": 426.32566328767217,
        "height": 260.3707944299243,
        "content": "**Find and replace image in docx. Connect to a datasource with an image URL you want to insert into the Docx file**"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "16bbf5da-5ebc-4e9c-8b3c-80d0077c51b8",
      "name": "Find Image ID in Docx",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        900,
        5220
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "authentication": "{{ $credentials.predefinedCredentialType }}",
        "nodeCredentialType": "YOUR_CREDENTIAL_HERE"
      },
      "notesInFlow": true,
      "typeVersion": 4.2,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "60325192-4730-4410-ae33-9127ff8cc5f7",
      "name": "Make file shareable publically (optional)",
      "type": "n8n-nodes-base.googleDrive",
...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "25",
  "name": "Add subscriber to form, create tag and subscriber to the tag",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        300,
        300
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "8680b093-4a01-4d3c-8431-1eede00cf41c",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "ConvertKit",
      "type": "n8n-nodes-base.convertKit",
      "position": [
        500,
        300
      ],
      "parameters": {
        "id": 1657198,
        "email": "",
        "additionalFields": {}
      },
      "credentials": {
        "convertKitApi": "convertkit"
      },
      "typeVersion": 1,
      "id": "e4ab6ef0-9506-4bcf-aa6d-f87141b2bcd6",
      "notes": "This convertKit node performs automated tasks as part of the workflow."
    },
    {
      "name": "ConvertKit1",
      "type": "n8n-nodes-base.convertKit",
      "position": [
        710,
        300
      ],
      "parameters": {
        "name": "",
        "resource": "tag"
      },
      "credentials": {
        "convertKitApi": "convertkit"
      },
      "typeVersion": 1,
      "id": "9374e563-ba69-47c0-b405-a6b5d28a1dbb",
      "notes": "This convertKit node performs automated tasks as part of the workflow."
    },
    {
      "name": "ConvertKit2",
      "type": "n8n-nodes-base.convertKit",
      "position": [
        910,
        300
      ],
      "parameters": {
        "email": "={{$node[\"ConvertKit\"].json[\"subscriber\"][\"email_address\"]}}",
        "tagId": 1850395,
        "resource": "tagSubscriber",
        "operation": "add",
        "additionalFields": {
          "fields": {
            "field": []
          }
        },
        "_injected_number_field": "not_a_number"
      },
      "credentials": {
        "convertKitApi": "convertkit"
      },
      "typeVersion": 1,
      "id": "10625451-3663-4b98-bae4-ee2197...

Output:
The node 'ConvertKit2' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'ConvertKit2'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-b5fde7c7:
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.152270",
    "updatedAt": "2025-09-29T07:07:49.152439",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "648130c4-5195-4b91-995b-443624019cd0",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        820,
        280
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "c25e5656-9ce2-4429-98f5-f86a88a8fe16",
      "name": "n8n1",
      "type": "n8n-nodes-base.n8n",
      "position": [
        2380,
        140
      ],
      "parameters": {
        "filters": {},
        "options": {},
        "resource": "execution",
        "returnAll": true,
        "requestOptions": {}
      },
      "credentials": {
        "n8nApi": {
          "id": "{{ $credentials.n8nApi.id }}",
          "name": "n8n account"
        }
      },
      "typeVersion": 1,
      "notes": "This n8n node performs automated tasks as part of the workflow."
    },
    {
      "id": "93acd82f-22ce-435c-b89e-a3f8ae876bc5",
      "name": "n8n list execution",
      "type": "n8n-nodes-base.n8n",
      "position": [
        1040,
        380
      ],
      "parameters": {
        "filters": {},
        "options": {},
        "resource": "execution",
        "returnAll": true,
        "requestOptions": {}
      },
      "credentials": {
        "n8nApi": {
          "id": "{{ $credentials.n8nApi.id }}",
          "name": "n8n account"
        }
      },
      "typeVersion": 1,
      "notes": "This n8n node performs automated tasks as part of the workflow."
    },
    {
      "id": "da03ff80-480d-4616-8aed-dd955d5e92d8",
      "name": "If Node",
      "type":...

Output: The JSON contains an unclosed string. All string values must be enclosed in double quotes.

Add the missing closing quote to complete the string.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Disconnected Node

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "id": "fcd82fb8-4ba9-4379-96fd-4dca17a35fa3",
      "name": "Document",
      "type": "n8n-nodes-base.set",
      "position": [
        -600,
        240
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "dba7b91b-17e3-4096-92aa-a6e5fe60eb55",
              "name": "twitch",
              "type": "string",
              "value": "YOUR-TWITCH-USERNAME"
            }
          ]
        }
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "5c608f47-3d94-4c87-926f-36eb5564c778",
      "name": "Twitch GraphQL",
      "type": "n8n-nodes-base.graphql",
      "position": [
        -380,
        240
      ],
      "parameters": {
        "query": "={\n  user(login: \"{{ $('Document').item.json.twitch }}\") {\n    stream {\n      id\n      viewersCount\n      title\n      type\n      game {\n        id\n      }\n    }\n  }\n}",
        "endpoint": "{{ $env.WEBHOOK_URL }}",
        "variables": "=",
        "requestFormat": "json",
        "headerParametersUi": {
          "parameter": [
            {
              "name": "client-id",
              "value": "kimne78kx3ncx6brgo4mv6wki5h1ko"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This graphql node performs automated tasks as part of the workflow."
    },
    {
      "id": "fcc08d0d-33ea-427c-bdea-2e219baa7191",
      "name": "Is Online",
      "type": "n8n-nodes-base.if",
      "position": [
        -160,
        240
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "311e3b31-03e7-4763-8b4a-ebc9a18b7...

Output:
The workflow has a broken data flow. The node '5c608f47-3d94-4c87-926f-36eb5564c778' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '5c608f47-3d94-4c87-926f-36eb5564c778'.

**Impact**: Data from '5c608f47-3d94-4c87-926f-36eb5564c778' will not flow to any downstream nodes, effectively stopping the workflow at this point.

**Solution**:
1. Open the workflow in the n8n editor
2. Draw a connection from '5c608f47-3d94-4c87-926f-36eb5564c778' to the next node in the flow
3. Verify the connection appears in the connections object

**Programmatic Fix**: Add the connection back to the workflow JSON:
```json
"connections": {
  "5c608f47-3d94-4c87-926f-36eb5564c778": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "27",
  "name": "Create a release and get all releases",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        210,
        300
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "8674f421-0667-4051-8c12-6a3533f71769",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Sentry.io",
      "type": "n8n-nodes-base.sentryIo",
      "position": [
        410,
        300
      ],
      "parameters": {
        "url": "",
        "version": "0.0.1",
        "projects": [
          ""
        ],
        "resource": "release",
        "operation": "create",
        "additionalFields": {},
        "organizationSlug": ""
      },
      "credentials": {
        "sentryIoApi": "sentry"
      },
      "typeVersion": 1,
      "id": "e43b0dc7-4c5d-4d72-a06a-88210e3a7f0d",
      "notes": "This sentryIo node performs automated tasks as part of the workflow."
    },
    {
      "name": "Sentry.io1",
      "type": "n8n-nodes-base.sentryIo",
      "position": [
        610,
        300
      ],
      "parameters": {
        "resource": "release",
        "operation": "getAll",
        "returnAll": true,
        "additionalFields": {},
        "organizationSlug": ""
      },
      "credentials": {
        "sentryIoApi": "sentry"
      },
      "typeVersion": 1,
      "id": "ee2eded4-924f-4205-af66-9d61ae09fafe",
      "notes": "This sentryIo node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-64c49c06",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "wor...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "nodes": [
    {
      "id": "293b70f0-06e8-4db5-befd-bfaed1f3575a",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -460,
        80
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "1c473546-6280-412d-9f8e-b43962365d78",
      "name": "Set Params",
      "type": "n8n-nodes-base.set",
      "position": [
        -160,
        -60
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "8b5c6ca0-5ca8-4f67-abc1-44341cf419bc",
              "name": "system_prompt",
              "type": "string",
              "value": "You are an n8n fanboy."
            },
            {
              "id": "7c36c362-6269-4564-b6fe-f82126bc8f5e",
              "name": "user_prompt",
              "type": "string",
              "value": "What are the differences between n8n and Make?"
            },
            {
              "id": "4366d2b5-ad22-445a-8589-fddab1caa1ab",
              "name": "domains",
              "type": "string",
              "value": "n8n.io, make.com"
            }
          ]
        }
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "894bd6a4-5db7-45fb-a8e0-1a81af068bbf",
      "name": "Clean Output",
      "type": "n8n-nodes-base.set",
      "position": [
        580,
        -100
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "5859093c-6b22-41db-ac6c-9a9f6f18b7e3",
              "name": "output",
              "type": "string",
              "value": "={{ $json.choices[0].message.content }}"
            },
            {
              "id": "13208fff-5153-45a7-a1cb-fe49e32d9a03",
    ...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-d9c8922f",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.209528",
    "updatedAt": "2025-09-29T07:07:49.209541",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "53e93a66-468a-4df8-b2cb-58ff0563f83f",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -160,
        0
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "70692fd5-d575-49d2-9e3c-71bdddb0782e",
      "name": "AI Agent",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1000,
        0
      ],
      "parameters": {
        "text": "=keyword: {{ $json.Keyword }}",
        "options": {
          "systemMessage": "=Check the keyword I provided and define if this keyword has a name of the known IT software, service, tool or app as a part of it (for example, ServiceNow or Salesforce) and return yes or no."
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 1.7,
      "notes": "This agent node performs automated tasks as part of the workflow."
    },
    {
      "id": "587e6283-32c0-4599-a024-2ce0079bdaeb",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1000,
        240
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "ju5aHhTljmCDxSl9",
          "name": "OpenAi account Polina's"
        }
      },
      "typeVersion": 1.2,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the wor...

Output:
The node 'Error Handler' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Error Handler'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "name": "Generate Image Workflow",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "0a657f21-f0fe-4521-be7f-aa245f86f5d3",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        340,
        -200
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "54ead951-03fb-4741-9e66-bffa0ff42302",
      "name": "Fetch Image from API",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        780,
        -200
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "sendQuery": true,
        "queryParameters": {
          "parameters": [
            {
              "name": "text",
              "value": "={{ $json.text }}"
            },
            {
              "name": "fontSize",
              "value": "={{ $json.fontSize }}"
            },
            {
              "name": "type",
              "value": "={{ $json.type }}"
            },
            {
              "name": "fontFamily",
              "value": "={{ $json.fontFamily }}"
            }
          ]
        }
      },
      "typeVersion": 4.2,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "9b60f208-7bbc-4c35-9303-797aabef478d",
      "name": "Set Image Properties",
      "type": "n8n-nodes-base.set",
      "position": [
        560,
        -200
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "25b4c572-4ba6-4719-b547-8d3787ba557b",
              "name": "size",
              "type": "string",
              "value": "600x400"
            },
            {
              "id": "a6689fdb-b212-4c88-b80f-64aabe61daa1",
 ...

Output:
The node 'Set Image Properties' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Set Image Properties'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "2",
  "name": "Add task to tasklist",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        500,
        310
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "c716e546-e8a1-49d0-8030-1799e5be8b3b",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Google Tasks",
      "type": "n8n-nodes-base.googleTasks",
      "position": [
        920,
        310
      ],
      "parameters": {
        "task": "={{ $items[999].json.value }}",
        "additionalFields": {}
      },
      "credentials": {
        "googleTasksOAuth2Api": "shraddha"
      },
      "typeVersion": 1,
      "id": "7764ad22-1f7c-4677-a60e-160c87c1cd6e",
      "notes": "This googleTasks node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-90ee3540",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "connections": {},
  "description": "Automated workflow: Add task to tasklist. This workflow processes data and performs automated tasks.",
  "meta": {
    "instanceId": "workflow-afe0f26e",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.225954",
    "updatedAt": "2025-09-29T07:07:49.225965",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "...

Output:
In node 'Google Tasks', the parameter 'task' contains an expression that references undefined data.

**Faulty Expression**: `={{ $items[999].json.value }}`
**Original Value**: `MDY3OTAyNjUyMDk5NDY5ODIzMzM6MDow`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Google Tasks' parameter 'task'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Timeout Configuration

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "2",
  "name": "Discord Intro",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        510,
        330
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "00d0747c-4369-41ee-a644-bf032c035e48",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Discord",
      "type": "n8n-nodes-base.discord",
      "position": [
        800,
        330
      ],
      "parameters": {
        "text": "Hello World!",
        "webhookUri": "{{ $env.API_BASE_URL }}"
      },
      "typeVersion": 1,
      "id": "36a5c3a2-ef9b-4d7d-a7a6-90041c8ce6ed",
      "notes": "This discord node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-1d7e0732",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "connections": {},
  "description": "Automated workflow: Discord Intro. This workflow processes data and performs automated tasks.",
  "meta": {
    "instanceId": "workflow-bde4153f",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.222256",
    "updatedAt": "2025-09-29T07:07:49.222319",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  ...

Output:
This workflow may experience timeout issues with long-running API requests.

**Symptoms**:
- Execution hangs indefinitely
- Connection timeout errors
- ETIMEDOUT or ESOCKETTIMEDOUT errors

**Root Cause**: No timeout configured for HTTP requests, or external services are slow.

**Solutions**:

1. **Set Appropriate Timeouts**:
```json
"options": {
  "timeout": 30000  // 30 seconds
}
```

2. **Add Error Handling**:
- Use Error Trigger node to catch timeout errors
- Implement fallback logic for failed requests

3. **Use Async Patterns**:
- For long operations, use webhook callbacks
- Implement polling patterns instead of waiting

4. **Configure Node Settings**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 2000,
"continueOnFail": true
```

**Best Practice**: Set reasonable timeouts (10-30 seconds) and always have error handling for external API calls.

Configure appropriate timeouts and error handling for HTTP requests.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-5e99c06e:
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.241907",
    "updatedAt": "2025-09-29T07:07:49.241916",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "468084ed-ce7d-45c5-bf27-ea9c91d5898a",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        0,
        0
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "fbde6cfe-9fac-46d2-958a-f42c9ef383a3",
      "name": "Retrieve WordPress Article",
      "type": "n8n-nodes-base.wordpress",
      "position": [
        440,
        0
      ],
      "parameters": {
        "postId": "1032",
        "options": {},
        "operation": "get"
      },
      "credentials": {
        "wordpressApi": {
          "id": "T0ygUN7hNFQVztP2",
          "name": "Wordpress account 2"
        }
      },
      "typeVersion": 1,
      "notes": "This wordpress node performs automated tasks as part of the workflow."
    },
    {
      "id": "54241e39-7a5f-45f4-9dab-72b5424f4061",
      "name": "Generate Summary or Transcription",
      "type": "n8n-nodes-base.noOp",
      "position": [
        680,
        0
      ],
      "parameters": {
        "text": "={{ $json.content }}",
        "messages": {
          "messageValues": [
            {
              "message": "Summarize or transcribe this article, depending on the workflow setting."
            }
          ]
        },
        "promptType": "define",
        "hasOutputParser": true
      },
      "typeVersion": 1.5,
      "notes": "This chainLlm node performs automated tasks as part of the workflow."
    },
    {
      "id": "49cfaab6-a0c1-4319-904d-c1e0a2c6aa91",
      "name": "Gene...

Output: The JSON contains an unclosed string. All string values must be enclosed in double quotes.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-f09aec22",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.231967",
    "updatedAt": "2025-09-29T07:07:49.232021",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "0f70dc82-f4af-444a-a3eb-381623091cb1",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -980,
        -200
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "cff3d74c-b381-42f9-96c0-b607a410ffeb",
      "name": "Wait",
      "type": "n8n-nodes-base.wait",
      "position": [
        -180,
        -200
      ],
      "webhookId": "1c3e61f9-9bd3-489b-a0a1-e20c1f52d496",
      "parameters": {
        "amount": 10
      },
      "typeVersion": 1.1,
      "notes": "This wait node performs automated tasks as part of the workflow."
    },
    {
      "id": "0ec6969b-17e2-41c3-a2c1-2c362cda54ce",
      "name": "Output",
      "type": "n8n-nodes-base.set",
      "position": [
        440,
        -180
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "53226f92-5381-4f9f-9be5-4b25f31db99c",
              "name": "data.video_url",
              "type": "string",
              "value": "={{ $json.data.video_url }}"
            }
          ]
        }
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "887660ad-0ca3-4364-a2d2-443349de19de",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -260,
        -300
      ],
      "parameters": {
        "color": 7,
        "width": 660,
        "he...

Output:
The node 'Create Video' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'Create Video'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Data Type Mismatch

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "30",
  "name": "Receive updates when a subscriber is added to a group and strore the information in Airtable",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "disabled": true,
      "position": [
        110,
        600
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "383308e6-10b0-4da3-b303-0c0cd193c408",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "MailerLite Trigger",
      "type": "n8n-nodes-base.mailerLiteTrigger",
      "position": [
        530,
        300
      ],
      "webhookId": "dd15d919-18b3-4af7-a5c9-c4583cdda9f5",
      "parameters": {
        "event": "subscriber.add_to_group",
        "_injected_number_field": "not_a_number"
      },
      "credentials": {
        "mailerLiteApi": "mailerlite"
      },
      "typeVersion": 1,
      "id": "5f368934-a1d4-496a-9d13-fd2b6d3d32d5",
      "notes": "This mailerLiteTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Set",
      "type": "n8n-nodes-base.set",
      "position": [
        730,
        300
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "Name",
              "value": "={{$node[\"MailerLite Trigger\"].json[\"data\"][\"subscriber\"][\"name\"]}}"
            },
            {
              "name": "Email",
              "value": "={{$node[\"MailerLite Trigger\"].json[\"data\"][\"subscriber\"][\"email\"]}}"
            }
          ]
        },
        "options": {},
        "keepOnlySet": true
      },
      "typeVersion": 1,
      "id": "cb201f55-5e1b-4593-83c6-18cefdb92746",
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "name": "Airtable",
      "type": "n8n-nodes-base.airtable",
      "position": [
        930,
        300
      ],
      "parameters": {
        "table": "Data"...

Output:
The node 'MailerLite Trigger' has a data type mismatch in its parameters.

**Issue**: A field expected a number but received a string value.

**Common Causes**:
1. Expression returns string instead of number
2. JSON parsing preserves string types for numeric values
3. Upstream node outputs different data types than expected

**Solutions**:

1. **Type Conversion in Expression**:
```javascript
// Convert string to number
{ parseInt($json.stringValue) }
{ parseFloat($json.decimalString) }
{ Number($json.value) }
```

2. **Use Code Node for Transformation**:
```javascript
return items.map(item => {
  item.json.numericField = Number(item.json.stringField);
  return item;
});
```

3. **Validate Data Types**:
- Use IF node to check types before processing
- Add error handling for invalid types

**Best Practice**: Always validate and transform data types explicitly when passing data between nodes.

Fix data type conversion in 'MailerLite Trigger'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Expression Reference Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-579ccdab",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.242996",
    "updatedAt": "2025-09-29T07:07:49.243004",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "fe599878-c955-4354-bbd0-a24fc1e3e933",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -340,
        -40
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "e03c7cef-4897-4234-b285-7be69e3c970d",
      "name": "Create Transcript1",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        100,
        -40
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "contentType": "multipart-form-data",
        "sendHeaders": true,
        "authentication": "={{ $items[999].json.value }}",
        "bodyParameters": {
          "parameters": [
            {
              "name": "file",
              "parameterType": "formBinaryData",
              "inputDataFieldName": "data"
            },
            {
              "name": "model_id",
              "value": "scribe_v1"
            }
          ]
        },
        "genericAuthType": "httpCustomAuth",
        "headerParameters": {
          "parameters": [
            {
              "name": "Content-Type",
              "value": "multipart/form-data"
            }
          ]
        }
      },
      "credentials": {
        "httpCustomAuth": {
          "id": "rDkSKjIA0mjmEv5k",
          "name": "Eleven Labs"
        }
      },
      "typeVersion": 4.2,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    ...

Output:
In node 'Create Transcript1', the parameter 'authentication' contains an expression that references undefined data.

**Faulty Expression**: `={{ $items[999].json.value }}`
**Original Value**: `{{ $credentials.genericCredentialType }}`

**Root Cause**: The expression references a field, node, or variable that doesn't exist in the data flow.

**Debugging Steps**:
1. Check the output of previous nodes to verify available fields
2. Use the Expression Editor to test expressions interactively
3. Add a Set node before this one to inspect available data
4. Use optional chaining for potentially undefined fields: `$json.field?.subfield`

**Best Practice**: Always validate data availability before using expressions.

Fix the expression in 'Create Transcript1' parameter 'authentication'.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "32",
  "name": "Create a customer and add them to a segment in Customer.io",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        440,
        260
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "81399e65-f538-46c8-8552-c9475c268af6",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "CustomerIo",
      "type": "n8n-nodes-base.customerIo",
      "position": [
        650,
        260
      ],
      "parameters": {
        "id": "2",
        "additionalFields": {
          "customProperties": {
            "customProperty": [
              {
                "key": "YOUR_CREDENTIAL_HERE",
                "value": "n8n"
              }
            ]
          }
        }
      },
      "credentials": {
        "customerIoApi": "cust"
      },
      "typeVersion": 1,
      "id": "9d81afc9-f27a-4e2d-91ae-8af6e8d7d74d",
      "notes": "This customerIo node performs automated tasks as part of the workflow."
    },
    {
      "name": "CustomerIo1",
      "type": "n8n-nodes-base.customerIo",
      "position": [
        840,
        260
      ],
      "parameters": {
        "resource": "segment",
        "customerIds": "={{$node[\"CustomerIo\"].json[\"id\"]}}"
      },
      "credentials": {
        "customerIoApi": "cust"
      },
      "typeVersion": 1,
      "id": "6a158d0b-8475-49d3-9c6d-c289fe6fe88b",
      "notes": "This customerIo node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-7377bb00",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    },
    {
      "parameters": {
        "url": "https://api.example.com/data",
        "method": "GET",
        "...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-e507a58c",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.250744",
    "updatedAt": "2025-09-29T07:07:49.250816",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "93a8b03f-ff6b-4559-9cb1-9f439ff5e990",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -1180,
        0
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "0aed449c-c60a-4309-91d2-4db9ed1f4ad2",
      "name": "Variables",
      "type": "n8n-nodes-base.set",
      "position": [
        -120,
        0
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "a6c47778-33f4-46a3-a86a-fd1e75930d93",
              "name": "firstname",
              "type": "string",
              "value": "={{ $json.properties.firstname }}"
            },
            {
              "id": "0e50b2bc-4bea-4fd0-95c0-46a87da69c19",
              "name": "lastname",
              "type": "string",
              "value": "={{ $json.properties.lastname }}"
            },
            {
              "id": "ee15f298-77f6-4c4a-b03b-c2cf9a53bdc2",
              "name": "email",
              "type": "string",
              "value": "={{ $json.properties.email }}"
            },
            {
              "id": "98a718f5-4372-4282-8a9a-46f2af39677a",
              "name": "product_to_sell",
              "type": "string",
              "value": "=AI partnerships: a consulting package of AI development and services. We help customers find a strong foothold on AI initiatives bringing them to life cost effectively and always with results."
            }
     ...

Output:
The node 'Google Gemini Chat Model1' (type: n8n-nodes-base.noOp) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "googlePalmApi": {
    "id": "dSxo6ns5wn658r8N",
    "name": "Google Gemini(PaLM) Api account"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Google Gemini Chat Model1' node.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "id": "340",
  "name": "Email body parser by aprenden8n.com",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        250,
        300
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "467865b5-a95d-4bb7-b2cd-09f6f3192f24",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Email Parser Snippet",
      "type": "n8n-nodes-base.functionItem",
      "position": [
        670,
        300
      ],
      "parameters": {
        "functionCode": "var obj = {};\nvar labels = item.labels.split(\",\");\nitem.labels.split(\",\").forEach(function(label) {\n  var re = labels.indexOf(label) === labels.length - 1 ? \"\\\\b\" + label + \"\\\\b[: ]+([^$]+)\" : \"\\\\b\" + label + \"\\\\b[: ]+([^\\\\n$]+)\";\n  var found = item.body.match(new RegExp(re, \"i\"));\n  if (found && found.length > 1) {\n    obj[label] = found[1].trim();\n  }\n});\n\nreturn obj;"
      },
      "typeVersion": 1,
      "id": "a39029d9-073d-4a10-a585-1b084bbb88dc",
      "notes": "This functionItem node performs automated tasks as part of the workflow."
    },
    {
      "name": "Set values",
      "type": "n8n-nodes-base.set",
      "position": [
        460,
        300
      ],
      "parameters": {
        "values": {
          "number": [],
          "string": [
            {
              "name": "body",
              "value": "Name: Miquel\nEmail: miquel@aprenden8n.com\nSubject: Welcome aboard\nMessage: Hi Miquel!\n\nThank you for your signup!"
            },
            {
              "name": "labels",
              "value": "Name,Email,Subject,Message"
            }
          ]
        },
        "options": {}
      },
      "typeVersion": 1,
      "id": "f9f6a2c1-580d-4a88-a5f5-d777a492e217",
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-d322b6ba",
      "name": "Er...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-ca526ff9",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.244416",
    "updatedAt": "2025-09-29T07:07:49.244426",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "45ae6e88-3fda-4e95-84db-085a895cc564",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        260,
        -100
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "09f71a7c-1219-426d-8563-fa05654cab44",
      "name": "Calculate ICP PersonScoring",
      "type": "n8n-nodes-base.airtop",
      "position": [
        700,
        -100
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "prompt": "Please extract the following information from the LinkedIn profile page:\n\n1. **Full Name**: Extract the full name of the individual.\n2. **Current or Most Recent Job Title**: Identify the job title next to the logo of the current or last employer.\n3a. **Current or Most Recent Employer**: Extract the name of the first company in the employment experience block. \n3b. Linkedin Company URL of the Current or Most Recent Employer: Extract the link of the first company in the employment experience block\n4. **Location**: Extract the location of the individual.\n5. **Number of Connections**: Extract the number of connections the individual has.\n6. **Number of Followers**: Extract the number of followers the individual has.\n7. **About Section Text**: Extract the text from the 'About' section.\n8. **Interest Level in AI**: Determine the person's interest level in AI (e.g., beginner, intermediate, advanced, expert).\n9. **Seniority Level**: Determine the seniority level of the person (e.g., junior, mid-l...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-3fb99517"
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.278868",
    "updatedAt": "2025-09-29T07:07:49.278881",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "fcf1064e-557f-4514-9109-bb10ac837f8b",
      "name": "Run python script",
      "type": "n8n-nodes-base.executeCommand",
      "position": [
        -100,
        20
      ],
      "parameters": {
        "command": "=python C:\\KOKORO\\voicegen.py \"{{ $json.text }}\" \"{{ $json.voice }}\" 1\n"
      },
      "typeVersion": 1,
      "notes": "This executeCommand node performs automated tasks as part of the workflow."
    },
    {
      "id": "199a3212-69c0-4314-92c8-783573f165d7",
      "name": "Passing variables",
      "type": "n8n-nodes-base.set",
      "position": [
        -320,
        20
      ],
      "parameters": {
        "mode": "raw",
        "options": {},
        "jsonOutput": "{\n  \"voice\": \"af_sarah\",\n  \"text\": \"Hello world!\"\n}\n"
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "deb008d0-53ae-4348-a555-9e54b6e0efd4",
      "name": "Start",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -540,
        20
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "ffa1b2bf-abc3-45d8-8b7b-de4c0780a609",
      "name": "Play sound",
      "type": "n8n-nodes-base.readBinaryFiles",
      "position": [
        120,
        20
      ],
      "parameters": {
        "fileSelector": "D:/output.mp3"
      },
      "typeVersion": 1,
      "alwaysOutputData": false,
      "notes": "This readBinaryFiles node performs automated tasks as part of the workflow."
    },
...

Output: The JSON is invalid because a comma is missing between properties. JSON requires commas to separate object properties and array elements.

Add the missing comma between object properties.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-0dd587ac",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.295303",
    "updatedAt": "2025-09-29T07:07:49.295318",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "e0721f8a-d157-4ec4-91b3-94060a841dc8",
      "name": "QuickChart",
      "type": "n8n-nodes-base.quickChart",
      "position": [
        240,
        -40
      ],
      "parameters": {
        "data": "={{ $json.jsonData.salesData }}",
        "chartType": "line",
        "labelsMode": "array",
        "labelsArray": "={{ $json.jsonData.labels }}",
        "chartOptions": {},
        "datasetOptions": {}
      },
      "typeVersion": 1,
      "notes": "This quickChart node performs automated tasks as part of the workflow."
    },
    {
      "id": "b178ca51-357f-4731-8953-75e2370edc2d",
      "name": "Edit Fields: Set JSON data to test",
      "type": "n8n-nodes-base.set",
      "position": [
        -80,
        -40
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "1b3ae0ac-7fa5-406c-8e61-d6a9a6c27f07",
              "name": "jsonData",
              "type": "object",
              "value": "={ \"reportTitle\": \"Quarterly Sales\", \"labels\": [\"Q1\", \"Q2\", \"Q3\", \"Q4\"], \"salesData\": [1250, 1800, 1550, 2100] }"
            }
          ]
        }
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "393665db-f6a6-4294-afd8-3a9f32192c64",
      "name": "Google Drive: Upload File",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        520,
        -40
      ],
      "parameters": {
        "name": "=chart.{{ $binary.data.fileExtension }}",
        "driveId": {
          "__rl": true,
          "mode": "li...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Empty Input Handling

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-abf2c4ab",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.292706",
    "updatedAt": "2025-09-29T07:07:49.292716",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "1ec0e1ad-0666-417b-b5af-b381b06e126f",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -120,
        180
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "c34a92d3-b4bd-4c2f-9fa0-66832729a31c",
      "name": "Upload photo",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        980,
        180
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "method": "PUT",
        "options": {},
        "sendBody": true,
        "contentType": "binaryData",
        "sendHeaders": true,
        "headerParameters": {
          "parameters": [
            {
              "name": "Authorization",
              "value": "=Bearer {{ $json.access_token }}"
            },
            {
              "name": "Content-Type",
              "value": "application/octet-stream"
            }
          ]
        },
        "inputDataFieldName": "data"
      },
      "typeVersion": 4.2,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "49ce594c-83c7-4b47-be03-6811ebdcc57b",
      "name": "Set config (sensitive data)",
      "type": "n8n-nodes-base.set",
      "position": [
        100,
        180
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "399d42f3-41e0-4043-9a57-85771bf5cd07",
              "name": "TENANT_ID",
              "t...

Output:
This workflow may fail when receiving empty or null input data.

**Common Error Messages**:
- "Cannot read property 'x' of undefined"
- "No items to process"
- "Input data is empty"

**Root Cause**: The workflow doesn't handle cases where:
- Trigger receives no data
- Previous node returns empty array
- API returns null or empty response

**Solutions**:

1. **Add IF Node for Empty Check**:
```json
{
  "parameters": {
    "conditions": {
      "number": [{
        "value1": "={{ $json.length }}",
        "operation": "larger",
        "value2": 0
      }]
    }
  },
  "name": "Check Not Empty",
  "type": "n8n-nodes-base.if"
}
```

2. **Use Default Values**:
```javascript
{{ $json.field ?? "default_value" }}
{{ $json.items || [] }}
```

3. **Add Set Node with Defaults**:
- Create a Set node that provides default values
- Place it early in the workflow

4. **Implement No Match Output**:
- Many nodes have "No Match" outputs
- Use these to handle empty cases gracefully

**Best Practice**: Always validate input data and provide sensible defaults for optional fields.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Rate Limiting Risk

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-8b774e51",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.280768",
    "updatedAt": "2025-09-29T07:07:49.280792",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "0e78a29e-87ba-4665-84c1-a413c45e25dc",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -420,
        -40
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "fe7b054a-e0c9-4642-a97f-6bec60a1ec55",
      "name": "Edit Image (OpenAI)",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        500,
        -40
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
        "method": "POST",
        "options": {},
        "sendBody": true,
        "contentType": "multipart-form-data",
        "authentication": "{{ $credentials.predefinedCredentialType }}",
        "bodyParameters": {
          "parameters": [
            {
              "name": "image",
              "parameterType": "formBinaryData",
              "inputDataFieldName": "data"
            },
            {
              "name": "prompt",
              "value": "add a mask with horns"
            },
            {
              "name": "model",
              "value": "gpt-image-1"
            },
            {
              "name": "n",
              "value": "1"
            },
            {
              "name": "size",
              "value": "1024x1024"
            },
            {
              "name": "quality",
              "value": "high"
            }
          ]
        },
        "nodeCredentialType": "YOUR_CREDENTIAL_HERE"
      },
      "credentials": {
        "openAiApi": {
          "id": "JyI0PkPec1Fr...

Output:
This workflow may encounter rate limiting issues when processing large batches of data.

**Common Rate Limit Errors**:
- HTTP 429 Too Many Requests
- HTTP 503 Service Unavailable
- API-specific rate limit messages

**Root Cause**: The workflow makes too many API requests in a short time period without delays.

**Solutions**:

1. **Add Wait Nodes**: Insert a Wait node between API calls
```json
{
  "parameters": {"amount": 1, "unit": "seconds"},
  "name": "Rate Limit Delay",
  "type": "n8n-nodes-base.wait"
}
```

2. **Enable Retry on Fail**:
```json
"retryOnFail": true,
"maxTries": 3,
"waitBetweenTries": 5000
```

3. **Use Batch Processing**: Split items into smaller batches with delays

4. **Implement Exponential Backoff**: Increase wait times with each retry

**Best Practice**: Always check API documentation for rate limits and implement appropriate throttling.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Syntax Error

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-1071e242",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.300964",
    "updatedAt": "2025-09-29T07:07:49.301015",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "b0a2f427-1788-4707-b2ca-07b7ba9878ab",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -2040,
        1040
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "9bf6edaf-e2ad-4702-8730-0600775531cb",
      "name": "Post Summarization",
      "type": "n8n-nodes-base.noOp",
      "position": [
        20,
        680
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 2,
      "notes": "This chainSummarization node performs automated tasks as part of the workflow."
    },
    {
      "id": "9541106a-af9c-4326-91b1-07f68c9ee386",
      "name": "Merge Input",
      "type": "n8n-nodes-base.merge",
      "position": [
        -720,
        980
      ],
      "parameters": {
        "mode": "combine",
        "options": {},
        "combineBy": "combineByPosition"
      },
      "typeVersion": 3,
      "notes": "This merge node performs automated tasks as part of the workflow."
    },
    {
      "id": "b0ad0465-0daa-48f6-a9c5-8dadca2ca4e1",
      "name": "Output The Results",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        1140,
        820
      ],
      "parameters": {
        "columns": {
          "value": {},
          "schema": [],
          "mappingMode": "autoMapInputData",
          "matchingColumns": [],
          "attemptToConvertTypes": false,
          "convertFieldsToString": false
        },
        "options": {},
        "operation": "append"...

Output: The JSON is invalid because there is a trailing comma before a closing brace. Remove the extra comma.

Remove the trailing comma before the closing brace.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: Missing Credentials

Please analyze the workflow JSON and explain:
1. What is wrong
2. Why it's causing problems
3. How to fix it

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-cc8ab0ea",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:49.295574",
    "updatedAt": "2025-09-29T07:07:49.295585",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "f3001828-f10b-41d5-a056-5327e1f694f3",
      "name": "HTML to PDF",
      "type": "n8n-nodes-base.noOp",
      "position": [
        -500,
        380
      ],
      "parameters": {
        "htmlInput": "
Hello World
"
      },
      "credentials": {
        "customJsApi": {
          "id": "h29wo2anYKdANAzm",
          "name": "CustomJS account"
        }
      },
      "typeVersion": 1,
      "notes": "This html2Pdf node performs automated tasks as part of the workflow."
    },
    {
      "id": "f3141220-b384-4efe-84f5-0a896b09a887",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -720,
        460
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "cee26b9b-7109-4336-8d7e-762cf40b4d8b",
      "name": "Convert PDF into PNG1",
      "type": "n8n-nodes-base.noOp",
      "position": [
        -280,
        540
      ],
      "parameters": {
        "resource": "url",
        "field_name": "={{ $json.path }}"
      },
      "credentials": {
        "customJsApi": {
          "id": "h29wo2anYKdANAzm",
          "name": "CustomJS account"
        }
      },
      "typeVersion": 1,
      "notes": "This PdfToPng node performs automated tasks as part of the workflow."
    },
    {
      "id": "46f47df0-a301-41a9-8d3a-f98977b56eda",
      "name": "Convert PDF into PNG",
      "type": "n8n-nodes-base.noOp",
      "position": [
        -280,
        380
      ],
      "parameters": {},
      "typeVersion": ...

Output:
The node 'Convert PDF into PNG' (type: n8n-nodes-base.noOp) requires credentials but the 'credentials' configuration is missing.

**Root Cause**: The credentials object was not defined for this node.

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "customJsApi": {
    "id": "h29wo2anYKdANAzm",
    "name": "CustomJS account"
  }
}
```

**Best Practice**: Always verify credentials are properly configured before deploying workflows. Use n8n's credential management system to store sensitive data securely.

Add credentials configuration to the 'Convert PDF into PNG' node.