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-6424c902",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.857180",
    "updatedAt": "2025-09-29T07:07:44.857191",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "8920dc6e-b2fb-4446-8cb3-f3f6d626dcb3",
      "name": "Linear Trigger",
      "type": "n8n-nodes-base.linearTrigger",
      "position": [
        420,
        360
      ],
      "webhookId": "a02faf62-684f-44bb-809f-e962c9ede70d",
      "parameters": {
        "teamId": "7a330c36-4b39-4bf1-922e-b4ceeb91850a",
        "resources": [
          "issue"
        ],
        "authentication": "{{ $credentials.oAuth2 }}"
      },
      "credentials": {
        "linearOAuth2Api": {
          "id": "02MqKUMdPxr9t3mX",
          "name": "Nik's Linear Creds"
        }
      },
      "typeVersion": 1,
      "notes": "This linearTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "61214884-62f9-4a00-9517-e2d51b44d0ae",
      "name": "Only tickets that need to be classified",
      "type": "n8n-nodes-base.filter",
      "position": [
        1000,
        360
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "bc3a756d-b2b6-407b-91c9-a1cd9da004e0",
              "operator": {
                "type": "string",
                "operation": "notContains"
              },
              "leftValue": "={{ $('Linear Trigger').item.json.data.description }}",
              "rightValue": "Add a description here"
            },
            {
              "id": "f3d8d0fc-332d-41a6-aef8-1f221bf30c0e",
              "operator": {
                ...

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: 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": "NLVfecejH0cTtcdd",
  "meta": {
    "instanceId": "workflow-9aefb406",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.881153",
    "updatedAt": "2025-09-29T07:07:44.881227",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Import CSV from URL to GoogleSheet",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "90cced3d-b03b-4b51-b1f7-4cbd2dac25eb",
      "name": "When clicking \"Execute Workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        860,
        380
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "df9519b6-937e-4a9e-bdb9-86fb722ca3c1",
      "name": "Upload to spreadsheet",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        1880,
        380
      ],
      "parameters": {
        "columns": {
          "value": {},
          "schema": [
            {
              "id": "unique_key",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "unique_key",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "\ufeffcountry",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "\ufeffcountry",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "country_code",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "country_code",
              "defaultMatch": false,
          ...

Output:
The node 'Download CSV' 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 'Download CSV'.


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:
{
  "id": "VoLT6Omw9KMQgPum"
  "meta": {
    "instanceId": "workflow-90e89325",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.910497",
    "updatedAt": "2025-09-29T07:07:44.910513",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Weekly_Shodan_Query___Report_Accidents__no_function_node_",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "54b2b2bd-9101-402c-b7cb-3d5e1070fcd2",
      "name": "Scan each IP",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        2123,
        202
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "authentication": "{{ $credentials.genericCredentialType }}",
        "genericAuthType": "httpQueryAuth"
      },
      "credentials": {
        "httpQueryAuth": {
          "id": "LyUxI7J9gK1haB4h",
          "name": "Shodan API Key"
        }
      },
      "typeVersion": 4.1,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "f6b194a7-a38d-46b4-899f-a9cb71de247e",
      "name": "Get watched IPs & Ports",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        1448.635348143835,
        200
      ],
      "parameters": {
        "url": "{{ $env.WEBHOOK_URL }}",
        "options": {}
      },
      "typeVersion": 4.1,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "a6754adf-610b-46f0-9019-7ea21ac22690",
      "name": "Split out services",
      "type": "n8n-nodes-base.itemLists",
      "position": [
        2323,
        202
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "data"
      },
      "typeVersion": 3,
      "notes": "This itemLists node performs automated tasks as par...

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: 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": "YSjQ7TVCNY9v1F2A",
  "meta": {
    "instanceId": "workflow-a7bb562e",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.891900",
    "updatedAt": "2025-09-29T07:07:44.891915",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Monitor_security_advisories",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "62ef1311-a623-4a7d-b59a-6c0a0d7751d7",
      "name": "When clicking \"Execute Workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        100,
        200
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "808c1b88-69e9-4e96-bcfd-b93810740fda",
      "name": "Get Palo Alto security advisories",
      "type": "n8n-nodes-base.rssFeedRead",
      "position": [
        400,
        360
      ],
      "parameters": {
        "url": "{{ $env.WEBHOOK_URL }}",
        "options": {}
      },
      "typeVersion": 1,
      "notes": "This rssFeedRead node performs automated tasks as part of the workflow."
    },
    {
      "id": "97f16fe1-c720-40e0-85ff-61fdbfb9a2c2",
      "name": "GlobalProtect advisory?",
      "type": "n8n-nodes-base.filter",
      "position": [
        1240,
        240
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{ $json.title }}",
              "value2": "GlobalProtect",
              "operation": "contains"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This filter node performs automated tasks as part of the workflow."
    },
    {
      "id": "3602f7bb-87d3-49a2-9916-b9ab7d86f58b",
      "name": "Traps advisory?",
      "type": "n8n-nodes-base.filter",
      "positi...

Output:
The node 'Email customers' 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 'Email customers'.


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": "",
  "meta": {
    "instanceId": "workflow-e1b88dec",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.903859",
    "updatedAt": "2025-09-29T07:07:44.903932",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Generate AI-Ready llms.txt Files from Screaming Frog Website Crawls",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "ca701618-b2d5-48ee-a503-d3513d018a65",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        360,
        -500
      ],
      "parameters": {
        "color": 7,
        "width": 360,
        "height": 860,
        "content": "## Form - Screaming Frog internal_html.csv upload  \n\nThis form node is used to trigger the workflow.  \n\nIt contains **three input fields**:  \n- Name of the website  \n- Short description of the website  \n- **Screaming Frog** export containing the internal URLs  \n\n\n\nIt is recommended to use the **internal_html.csv** export, but **internal_all.csv** will also work, as the workflow includes a filter to process only indexable URLs.\n"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "bc040ca0-f38d-4458-a60c-17f71dbfd1ea",
      "name": "Sticky Note1",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        780,
        -500
      ],
      "parameters": {
        "color": 7,
        "width": 360,
        "height": 860,
        "content": "## Extract data from Screaming Frog file\n\nThis node extracts data from the **CSV file** provided by the user.  \n\nIt produces an output that is **easily usable** in the following nodes.  \n\n\u26a0\ufe0f **Caution:**  \nIf the uploaded file is **not** the expected Screaming Frog export, the wor...

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: 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": "wwvUsosYUyMfpGbB",
  "meta": {
    "instanceId": "workflow-82c3e5fd",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.906539",
    "updatedAt": "2025-09-29T07:07:44.906560",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "ProspectLens company research",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "fd68acdf-ed1e-4f69-a046-fcdaa626acca",
      "name": "When clicking \u2018Test workflow\u2019",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        720,
        400
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "d4e4875a-e41f-4248-937a-a4658c23eb5e",
      "name": "Filter",
      "type": "n8n-nodes-base.filter",
      "notes": "Only process rows which have empty processed_at field",
      "position": [
        1160,
        400
      ],
      "parameters": {
        "options": {
          "looseTypeValidation": true
        },
        "conditions": {
          "options": {
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "loose"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "5aca0836-4797-41d3-8094-f3a170e5a3c9",
              "operator": {
                "type": "string",
                "operation": "empty",
                "singleValue": true
              },
              "leftValue": "={{ $json.processed_at }}",
              "rightValue": ""
            }
          ]
        }
      },
      "notesInFlow": true,
      "typeVersion": 2
    },
    {
      "id": "e12c1846-dd38-414c-8e2e-8d0834ad8668",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "posit...

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: 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": "133",
  "name": "Receive updates for specified tasks in Flow",
  "nodes": [
    {
      "name": "Flow Trigger",
      "type": "n8n-nodes-base.flowTrigger",
      "position": [
        650,
        250
      ],
      "parameters": {
        "taskIds": "",
        "resource": "task"
      },
      "credentials": {
        "flowApi": ""
      },
      "typeVersion": 1,
      "id": "237fdc6d-9da9-4cd2-89ab-aa9b2b44b55c",
      "notes": "This flowTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-b31d77ab",
      "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: Receive updates for specified tasks in Flow. This workflow processes data and performs automated tasks.",
  "meta": {
    "instanceId": "workflow-130e7c61",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.923276",
    "updatedAt": "2025-09-29T07:07:44.923289",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "notes": "Excellent quality workflow: Receive updates for specified tasks in Flow. This workflow has been optimized for production use with comprehensive error handling, security, and documentation."
}...

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: 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:
{
  "name": "Dynamic credentials using expressions",
  "nodes": [
    {
      "id": "cc6f2b1e-0ed0-4d22-8a44-d7223ba283b4",
      "name": "n8n Form Trigger",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        560,
        520
      ],
      "webhookId": "da4071f2-7550-4dae-aa48-8bced4291643",
      "parameters": {
        "path": "da4071f2-7550-4dae-aa48-8bced4291643",
        "formTitle": "Test dynamic credentials",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Enter your NASA API key",
              "requiredField": true
            }
          ]
        },
        "responseMode": "responseNode",
        "formDescription": "This form is for testing an n8n workflow that demonstrates setting credentials with expressions."
      },
      "typeVersion": 2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "ef336bae-3d4f-419c-ab5c-b9f0de89f170",
      "name": "NASA",
      "type": "n8n-nodes-base.nasa",
      "position": [
        900,
        520
      ],
      "parameters": {
        "additionalFields": {}
      },
      "credentials": {
        "nasaApi": {
          "id": "QDDBOZOD6k3ijL5t",
          "name": "NASA account"
        }
      },
      "typeVersion": 1,
      "notes": "This nasa node performs automated tasks as part of the workflow."
    },
    {
      "id": "143bcdb6-aca0-4dd8-9204-9777271cd230",
      "name": "Respond to Webhook",
      "type": "n8n-nodes-base.respondToWebhook",
      "position": [
        1220,
        520
      ],
      "parameters": {
        "options": {},
        "redirectURL": "{{ $env.BASE_URL }}",
        "respondWith": "redirect"
      },
      "typeVersion": 1,
      "notes": "This respondToWebhook node performs automated tasks as part of the workflow."
    },
    {
      "id": "0a0dee23-fa16-4f09-b5e0-856f47fb53d0",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "pos...

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.


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:
{
  "nodes": [
    {
      "id": "4110f060-6945-4c52-9ea0-1dedb9309704",
      "name": "Add  to Waitlist Sheet",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        160,
        -440
      ],
      "parameters": {
        "columns": {
          "value": {
            "Email": "={{ $json.Email }}",
            "Company": "={{ $json['Company Website'] }}",
            "Lastname": "={{ $json.Lastname }}",
            "Firstname": "={{ $json.Firstname }}",
            "Verification-Code": "={{ $json.code }}"
          },
          "schema": [
            {
              "id": "Firstname",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Firstname",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Lastname",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Lastname",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Email",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "Email",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Company",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Company",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "Verification-Code",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "Verification-Code",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
      ...

Output:
The node 'Save Intend to List' (type: n8n-nodes-base.googleSheets) 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": {
  "googleSheetsOAuth2Api": {
    "id": "7508uyvd9qA3loJG",
    "name": "Demo Creds Sheets"
  }
}
```

**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 'Save Intend to List' node.


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-986dfc74",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.942190",
    "updatedAt": "2025-09-29T07:07:44.942208",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "7263f921-1622-47eb-903c-729a75965e20",
      "name": "About You",
      "type": "n8n-nodes-base.form",
      "position": [
        600,
        200
      ],
      "webhookId": "14efc5e8-0984-4ccb-a118-ce3492f8ea02",
      "parameters": {
        "options": {
          "formTitle": "Thanks For Signing Up!",
          "buttonLabel": "Continue (1 of 3)",
          "formDescription": "Before you go, we'd love to know more about you and why you're interested in our service. Complete the following questions for a nice treat at the end!\n\n* This survey is optional."
        },
        "formFields": {
          "values": [
            {
              "fieldLabel": "First Name",
              "placeholder": "eg. Mark",
              "requiredField": true
            },
            {
              "fieldLabel": "Last Name",
              "placeholder": "eg. Zuckerberg",
              "requiredField": true
            },
            {
              "fieldLabel": "Country/Region"
            },
            {
              "fieldType": "dropdown",
              "fieldLabel": "Job Level",
              "fieldOptions": {
                "values": [
                  {
                    "option": "CEO"
                  },
                  {
                    "option": "VP"
                  },
                  {
                    "option": "Director"
                  },
                  {
                    "option": "Manager"
                  },
                  {
                    "option": "Non-manager"
                  },
                  {
                    "option": "Student or Intern"
         ...

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:
{
  "meta": {
    "instanceId": "workflow-b9cb297a",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.959324",
    "updatedAt": "2025-09-29T07:07:44.959333",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "07433551-9fa9-421c-a0bf-721fa1624304",
      "name": "Sticky Note11",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -1380,
        -320
      ],
      "parameters": {
        "color": 4,
        "width": 1075,
        "height": 736,
        "content": "## Developed by Amjid Ali\n\nThank you for using this workflow template. It has taken me countless hours of hard work, research, and dedication to develop, and I sincerely hope it adds value to your work.\n\nIf you find this template helpful, I kindly ask you to consider supporting my efforts. Your support will help me continue improving and creating more valuable resources.\n\nYou can contribute via PayPal here:\n\n{{ $env.WEBHOOK_URL }}\n\nFor Full Course about ERPNext or Automation using AI follow below link\n\n{{ $env.WEBHOOK_URL }}\n\nAdditionally, when sharing this template, I would greatly appreciate it if you include my original information to ensure proper credit is given.\n\nThank you for your generosity and support!\nEmail : amjid@amjidali.com\n{{ $env.WEBHOOK_URL }}\n{{ $env.WEBHOOK_URL }}\n{{ $env.WEBHOOK_URL }}"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "31a0c5e9-c6f6-4921-8f92-be84cc669869",
      "name": "On form submission",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -220,
        -80
      ],
      "webhookId": "syncbricks-youtube-meta-automation",
      "parameters": {
        "options": {
          "buttonLabel": "Update Youtube Video"
        },
        "formTitle": "Syncbricks Yout...

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-b4617045",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.954452",
    "updatedAt": "2025-09-29T07:07:44.954519",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "9252c041-d6b2-49fe-8edb-8d8cb8a1341d",
      "name": "On form submission",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        240,
        0
      ],
      "webhookId": "0c5c8b39-06a7-4d07-95be-b729d2a9eb6f",
      "parameters": {
        "options": {},
        "formTitle": "Batch File Upload to Google Drive",
        "formFields": {
          "values": [
            {
              "fieldType": "file",
              "fieldLabel": "file",
              "requiredField": true
            },
            {
              "fieldLabel": "folderName",
              "requiredField": true
            }
          ]
        },
        "formDescription": "Use this form to upload multiple files to a specific Google Drive folder. Simply select your files and specify your target folder name. If the folder doesn't exist yet, we'll create it automatically for you. This streamlined process allows you to organize and store multiple files in one go, saving you time and effort."
      },
      "typeVersion": 2.2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "e27712ac-238d-4b45-b842-a044dc40dccd",
      "name": "Get Folder Name",
      "type": "n8n-nodes-base.set",
      "position": [
        560,
        0
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "1b997842-86f3-4bce-b8d2-e8d73387dae1",
              "name": "folderName",
              "type": "string",
              "value": "={{ $json.folderName }}"
            }
          ]
        }
      ...

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: 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:
{
  "meta": {
    "instanceId": "workflow-7054e353",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.952325",
    "updatedAt": "2025-09-29T07:07:44.952342",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "a85eff80-4330-4bd8-acd9-9bf6e0b67c59",
      "name": "Get MediaMarkt Offers Website",
      "type": "n8n-nodes-brightdata.brightData",
      "position": [
        40,
        -160
      ],
      "parameters": {
        "url": "{{ $env.WEBHOOK_URL }}",
        "zone": {
          "__rl": true,
          "mode": "list",
          "value": "web_unlocker1",
          "cachedResultName": "web_unlocker1"
        },
        "format": "json",
        "country": {
          "__rl": true,
          "mode": "list",
          "value": "es",
          "cachedResultName": "es"
        },
        "requestOptions": {}
      },
      "credentials": {
        "brightdataApi": {
          "id": "jk945kIuAFAo9bcg",
          "name": "BrightData account"
        }
      },
      "typeVersion": 1,
      "notes": "This brightData node performs automated tasks as part of the workflow."
    },
    {
      "id": "d27b03e0-b0f1-4c76-b68e-d716391c71da",
      "name": "Create HTML for Email",
      "type": "n8n-nodes-document-generator.documentGenerator",
      "position": [
        60,
        100
      ],
      "parameters": {
        "template": "
\nThese are our recommended deals today:
\n
\n{{#each items}}\n
{{category}}: {{name}} for {{price}}\u20ac
\n{{/each}}\n
\n
",
        "oneTemplate": true
      },
      "typeVersion": 1,
      "notes": "This documentGenerator node performs automated tasks as part of the workflow."
    },
    {
      "id": "d47ee04f-c1c5-4aac-a615-aa68f5a2d6cd",
      "name": "Extract items from results",
      "type": "n8n-nodes-base.s...

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.


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": "d681d557-cb02-4fb1-9871-bfae504992ca",
      "name": "HubSpot",
      "type": "n8n-nodes-base.hubspot",
      "notes": "Add meeting notes in the contact form",
      "position": [
        260,
        40
      ],
      "parameters": {
        "type": "meeting",
        "metadata": {
          "body": "={{ $('Summarization').item.json.response.text }}",
          "title": "New meeting"
        },
        "resource": "engagement",
        "authentication": "{{ $credentials.oAuth2 }}",
        "additionalFields": {
          "associations": {
            "contactIds": "={{ $json.properties.hs_object_id }}"
          }
        }
      },
      "credentials": {
        "hubspotOAuth2Api": {
          "id": "JxzF93M0SJ00jDD9",
          "name": "HubSpot account"
        }
      },
      "notesInFlow": true,
      "typeVersion": 2.1
    },
    {
      "id": "e4849449-3464-4deb-a9be-07b3d0bb2d56",
      "name": "HubSpot1",
      "type": "n8n-nodes-base.hubspot",
      "notes": "Search for the id",
      "position": [
        20,
        40
      ],
      "parameters": {
        "operation": "search",
        "authentication": "{{ $credentials.oAuth2 }}",
        "filterGroupsUi": {
          "filterGroupsValues": [
            {
              "filtersUi": {
                "filterValues": [
                  {
                    "value": "={{ $('Enter Client Transcript').item.json['client email'] }}",
                    "propertyName": "email|string"
                  }
                ]
              }
            }
          ]
        },
        "additionalFields": {}
      },
      "credentials": {
        "hubspotOAuth2Api": {
          "id": "JxzF93M0SJ00jDD9",
          "name": "HubSpot account"
        }
      },
      "notesInFlow": true,
      "typeVersion": 2.1
    },
    {
      "id": "16ac22b7-62fd-429c-b766-5ffe503a3231",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -60,
...

Output:
The workflow has a broken data flow. The node '5bdd3903-06f3-4c21-bc57-7127cfc6e433' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '5bdd3903-06f3-4c21-bc57-7127cfc6e433'.

**Impact**: Data from '5bdd3903-06f3-4c21-bc57-7127cfc6e433' 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 '5bdd3903-06f3-4c21-bc57-7127cfc6e433' 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": {
  "5bdd3903-06f3-4c21-bc57-7127cfc6e433": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect '5bdd3903-06f3-4c21-bc57-7127cfc6e433' to the workflow.


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:
{
  "id": "AqWXpCre4fsPEkAH",
  "meta": {
    "instanceId": "workflow-e06b8aa0",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.958722",
    "updatedAt": "2025-09-29T07:07:44.958738",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Simple OpenAI Image Generator",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "526c24bc-3bc5-48c3-ae1e-5b0c0352d07f",
      "name": "Convert to File",
      "type": "n8n-nodes-base.convertToFile",
      "position": [
        440,
        0
      ],
      "parameters": {
        "options": {},
        "operation": "toBinary",
        "sourceProperty": "data[0].b64_json"
      },
      "typeVersion": 1.1,
      "notes": "This convertToFile node performs automated tasks as part of the workflow."
    },
    {
      "id": "20fdcc11-5e8a-4788-b3a3-e556996b59f7",
      "name": "Prompt and options",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        0,
        0
      ],
      "webhookId": "b749da3f-836f-4996-a8ee-bc26f8677582",
      "parameters": {
        "options": {},
        "formTitle": "OpenAI Image Generator",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Prompt",
              "placeholder": "Snow-covered mountain village in the Alps",
              "requiredField": true
            },
            {
              "fieldType": "dropdown",
              "fieldLabel": "Image size",
              "fieldOptions": {
                "values": [
                  {
                    "option": "1024x1024"
                  },
                  {
                    "option": "1024x1536"
                  },
                  {
                    "option": "1536x1024"
                  }
                ]
              },
              "requiredField": tr...

Output:
The node 'OpenAI Image Generation' (type: n8n-nodes-base.httpRequest) 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": {
  "openAiApi": {
    "id": "x1byAha0t8ltLIeW",
    "name": "OpenAi 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 'OpenAI Image Generation' node.


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:
{
  "id" "CYv2u2izrgZWk5bK",
  "meta": {
    "instanceId": "workflow-cc52393d",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:44.983531",
    "updatedAt": "2025-09-29T07:07:44.983552",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "DigialOceanUpload",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "dedd8475-1f90-4c6e-a7b3-d4246648fcec",
      "name": "On form submission",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        200,
        340
      ],
      "webhookId": "f506f7cd-dded-491a-b56e-fb4e0eade910",
      "parameters": {
        "options": {},
        "formTitle": "Upload File",
        "formFields": {
          "values": [
            {
              "fieldType": "file",
              "fieldLabel": "File to Upload",
              "requiredField": true
            }
          ]
        },
        "formDescription": "Upload the file to the public storage area"
      },
      "typeVersion": 2.2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "bbaed371-3860-4370-8103-16b7b955cd7e",
      "name": "S3 Node",
      "type": "n8n-nodes-base.s3",
      "position": [
        360,
        340
      ],
      "parameters": {
        "fileName": "={{ $json['File to Upload'][0].filename }}",
        "operation": "upload",
        "bucketName": "dailyai",
        "additionalFields": {
          "acl": "publicRead"
        },
        "binaryPropertyName": "File_to_Upload"
      },
      "credentials": {
        "s3": {
          "id": "FHy0lHKFlTe0nVPv",
          "name": "Digital Ocean Spaces"
        }
      },
      "typeVersion": 1,
      "notes": "This s3 node performs automated tasks as part of the workflow."
    },
    {
      "id": "da21e508-a62f-49dd-ac1c-6e...

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:
{
  "id": "QObDE85a2ArfJkxV",
  "meta": {
    "instanceId": "workflow-cbf2e58a",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.002279",
    "updatedAt": "2025-09-29T07:07:45.002344",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Automated Form Submission Data Storage in Airtable",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "fef66f10-a3eb-4e71-9493-3d90ebd52fde",
      "name": "On form submission",
      "type": "n8n-nodes-base.formTrigger",
      "notes": "Create User Form",
      "position": [
        120,
        80
      ],
      "webhookId": "39d82b4d-4d27-40de-a12b-0dafab18bb93",
      "parameters": {
        "options": {},
        "formTitle": "Create User",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Name",
              "placeholder": "Enter Your Name",
              "requiredField": true
            },
            {
              "fieldType": "number",
              "fieldLabel": "Age",
              "placeholder": "Enter Your Age",
              "requiredField": true
            },
            {
              "fieldType": "email",
              "fieldLabel": "email",
              "placeholder": "Enter Your Email",
              "requiredField": true
            },
            {
              "fieldLabel": "address",
              "placeholder": "Enter Your Address"
            },
            {
              "fieldType": "dropdown",
              "fieldLabel": "You have Subscription ?",
              "fieldOptions": {
                "values": [
                  {
                    "option": "Yes"
                  },
                  {
                    "option": "No"
                  }
                ]
              },
              "requiredField": true
            }
  ...

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:
{
  "id": "Xfz2YRxH6qFfpqHw",
  "meta": {
    "instanceId": "workflow-0202c043",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.005776",
    "updatedAt": "2025-09-29T07:07:45.005795",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "SEO Blog Generator with GPT-4o, Perplexity, and Telegram Integration",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "17ab0b24-b1eb-4e4e-a249-9889c9876fe4",
      "name": "Note4",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        880,
        180
      ],
      "parameters": {
        "color": 3,
        "width": 420,
        "height": 440,
        "content": "## Write SEO Optimized Blog Post\n\n\n"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "6bf602e0-ad29-47e6-93d7-79fd2a4228c2",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1480,
        -120
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "value": "gpt-4o-mini"
        },
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "qX50oKgUA6tXfxne",
          "name": "ChatBot Content"
        }
      },
      "typeVersion": 1.2,
      "notes": "This lmChatOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "8a3739ac-9492-400c-b5b8-eeb305647752",
      "name": "Structured Output Parser",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1740,
        -100
      ],
      "parameters": {
        "jsonSchemaExample": "{\n\"slug\": \"rpo-benefits-recruitment\",\n\"title\": \"7 Key Advantages of RPO for Modern Recruitment\",\n\"meta\": \"Explore h...

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: 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": "XxkmcgZC4OtIOVoD",
  "meta": {
    "instanceId": "workflow-2d6f9a58",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.030446",
    "updatedAt": "2025-09-29T07:07:45.030470",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Youtube Video Transcript Extraction",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "686e639a-650d-480d-9887-11bd4140f1fe",
      "name": "YoutubeVideoURL",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -20,
        0
      ],
      "webhookId": "156a04c8-917d-4624-a46e-8fbcab89d16b",
      "parameters": {
        "options": {},
        "formTitle": "={{ $items[999].json.value }}",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Youtube Video Url",
              "requiredField": true
            }
          ]
        }
      },
      "typeVersion": 2.2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "5384c4ed-a726-4253-8a88-d413124f80be",
      "name": "cleanedTranscript",
      "type": "n8n-nodes-base.set",
      "position": [
        740,
        0
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "7653a859-556d-4e00-bafa-6f70f90de0d7",
              "name": "transcript",
              "type": "string",
              "value": "={{ $json.cleanedTranscript }}"
            }
          ]
        }
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "83b6567f-c931-429c-8d7c-0b2549820ca1",
      "name": "processTranscript",
      "type": "n8n-nodes-base.function",
      "position": [
        500,
        0
   ...

Output:
In node 'YoutubeVideoURL', the parameter 'formTitle' contains an expression that references undefined data.

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

**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 'YoutubeVideoURL' parameter 'formTitle'.


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:
{
  "id": "gsra9JToRDftNEvH",
  "meta": {
    "instanceId": "workflow-9a41f1b9",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.025319",
    "updatedAt": "2025-09-29T07:07:45.025328",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "\ud83e\udd13 Conversion Rate Optimizer",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "8aca34c2-65d6-432a-a7a5-fede59c3f4cb",
      "name": "Landing Page Url",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -180,
        0
      ],
      "webhookId": "0818531a-3892-49f6-af78-cde8d538b205",
      "parameters": {
        "options": {},
        "formTitle": "Conversion Rate Optimizer",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Landing Page Url",
              "placeholder": "{{ $env.WEBHOOK_URL }}",
              "requiredField": true
            }
          ]
        },
        "formDescription": "Your Landing Page is Leaking Sales\u2014Fix It Now"
      },
      "typeVersion": 2.2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "61e17805-93aa-46a3-a5a1-36c02da6432a",
      "name": "Scrape Website",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        20,
        0
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {}
      },
      "typeVersion": 4.2,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "cbe8bed2-37a0-4459-a34c-47b87c012875",
      "name": "AI Agent",
      "type": "n8n-nodes-base.noOp",
      "position": [
        240,
        0
      ],
      "parameters": {
        "text": "=You are a professional expert in Conversion Rate Optimization who he...

Output:
The workflow has a broken data flow. The node '61e17805-93aa-46a3-a5a1-36c02da6432a' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '61e17805-93aa-46a3-a5a1-36c02da6432a'.

**Impact**: Data from '61e17805-93aa-46a3-a5a1-36c02da6432a' 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 '61e17805-93aa-46a3-a5a1-36c02da6432a' 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": {
  "61e17805-93aa-46a3-a5a1-36c02da6432a": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect '61e17805-93aa-46a3-a5a1-36c02da6432a' to the workflow.


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": "iLpBIRuhpWToO22N",
  "meta": {
    "instanceId": "workflow-238feb77",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.033708",
    "updatedAt": "2025-09-29T07:07:45.033730",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "\ud83e\udd16 On-Page SEO Audit",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "f4a971be-a961-4ad6-b38d-830c5fca5407",
      "name": "Landing Page Url",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -180,
        0
      ],
      "webhookId": "afe067a5-4878-4c9d-b746-691f77190f54",
      "parameters": {
        "options": {},
        "formTitle": "Conversion Rate Optimizer",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Landing Page Url",
              "placeholder": "{{ $env.WEBHOOK_URL }}",
              "requiredField": true
            }
          ]
        },
        "formDescription": "Your Landing Page is Leaking Sales\u2014Fix It Now"
      },
      "typeVersion": 2.2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "e280139f-94b8-49dc-91e7-c6ffa0c04716",
      "name": "Scrape Website",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        20,
        0
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {}
      },
      "typeVersion": 4.2,
      "notes": "This httpRequest node performs automated tasks as part of the workflow."
    },
    {
      "id": "de9ff0da-4ef9-4878-af0d-5733e010402c",
      "name": "OpenAI Chat Model",
      "type": "n8n-nodes-base.noOp",
      "position": [
        320,
        20
      ],
      "parameters": {
        "model": {
          "__rl": true,
          "mode": "list",
          "valu...

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:
{
  "id": "lWfWe93aNGuNPLBz",
  "meta": {
    "instanceId": "workflow-a3e5c76c",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.045056",
    "updatedAt": "2025-09-29T07:07:45.045065",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Automate Your Customer Service With WhatsApp Business Cloud & Asana",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "9d2a824a-6344-499e-a28a-454cf27b18e1",
      "name": "n8n Form Trigger",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        40,
        620
      ],
      "webhookId": "15e05cd5-c58d-4bf2-8358-f0cd1917334f",
      "parameters": {
        "path": "15e05cd5-c58d-4bf2-8358-f0cd1917334f",
        "options": {},
        "formTitle": "Contact Us!",
        "formFields": {
          "values": [
            {
              "fieldLabel": "Whats is your Name?",
              "requiredField": true
            },
            {
              "fieldType": "number",
              "fieldLabel": "What is your Phone Number?",
              "requiredField": true
            },
            {
              "fieldLabel": "What is your problem?",
              "requiredField": true
            }
          ]
        }
      },
      "typeVersion": 2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "ac7cca4a-e42b-4eaa-bd8b-121c27b4f976",
      "name": "WhatsApp Business Cloud",
      "type": "n8n-nodes-base.whatsApp",
      "position": [
        800,
        480
      ],
      "parameters": {
        "textBody": "=Hello {{ $json[\"Whats is your Name?\"] }},\n\nThank you for filling out the contact form.\nOur customer support team will get back to you as soon as possible.",
        "operation": "send",
        "phoneNumberId": "YOUR_PHONE...

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: 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:
{
  "id": "plzObaqgoEvV4UU0",
  "meta": {
    "instanceId": "workflow-077e823d",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.042180",
    "updatedAt": "2025-09-29T07:07:45.042193",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Post on X",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "203a06a1-2e25-46df-9465-4d5740177249",
      "name": "Create session",
      "type": "n8n-nodes-base.airtop",
      "position": [
        60,
        180
      ],
      "parameters": {
        "profileName": "={{ $json.airtop_profile }}",
        "timeoutMinutes": 5,
        "saveProfileOnTermination": true
      },
      "credentials": {
        "airtopApi": {
          "id": "Yi4YPNnovLVUjFn5",
          "name": "Airtop API"
        }
      },
      "typeVersion": 1,
      "notes": "This airtop node performs automated tasks as part of the workflow."
    },
    {
      "id": "18c8ade3-8492-4e75-8310-3be4d7815ab6",
      "name": "Create window",
      "type": "n8n-nodes-base.airtop",
      "position": [
        280,
        180
      ],
      "parameters": {
        "url": "{{ $env.WEBHOOK_URL }}",
        "resource": "window",
        "additionalFields": {}
      },
      "typeVersion": 1,
      "notes": "This airtop node performs automated tasks as part of the workflow."
    },
    {
      "id": "c46baeac-5d91-4656-a30f-0ca932e8042c",
      "name": "Type text",
      "type": "n8n-nodes-base.airtop",
      "position": [
        500,
        180
      ],
      "parameters": {
        "text": "={{ $('Parameters').item.json.post_text }}",
        "resource": "interaction",
        "operation": "type",
        "pressEnterKey": true,
        "additionalFields": {},
        "elementDescription": "\"What's happening?\" text box on top"
      },
      "credentia...

Output:
The node 'Create window' (type: n8n-nodes-base.airtop) 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": {
  "airtopApi": {
    "id": "Yi4YPNnovLVUjFn5",
    "name": "Airtop API"
  }
}
```

**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 'Create window' node.


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": "r1u4HOJu5j5sP27x",
  "meta": {
    "instanceId": "workflow-1015f64d",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.043943",
    "updatedAt": "2025-09-29T07:07:45.043951",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Social Media Publisher",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "f5050652-6170-41c6-b3c3-0f6616c9d575",
      "name": "On form submission",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        -380,
        120
      ],
      "webhookId": "bb578d47-feaa-4973-96df-659089838de5",
      "parameters": {
        "options": {},
        "formTitle": "Post Publisher",
        "formFields": {
          "values": [
            {
              "fieldType": "dropdown",
              "fieldLabel": "Platform",
              "fieldOptions": {
                "values": [
                  {
                    "option": "instagram"
                  },
                  {
                    "option": "linkedin"
                  },
                  {
                    "option": "facebook"
                  },
                  {
                    "option": "x"
                  },
                  {
                    "option": "tiktok"
                  },
                  {
                    "option": "threads"
                  }
                ]
              },
              "requiredField": true
            },
            {
              "fieldLabel": "Account",
              "placeholder": "User Profile name set on Upload-post.com",
              "requiredField": true
            },
            {
              "fieldType": "textarea",
              "fieldLabel": "Caption",
              "requiredField": true
            },
            {
              "fieldType": "file",
             ...

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.


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:
{
  "id": "105",
  "name": "screenshot",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        440,
        580
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "node-66019e36"
    },
    {
      "name": "Create Web + Email Item",
      "type": "n8n-nodes-base.functionItem",
      "position": [
        630,
        580
      ],
      "parameters": {
        "functionCode": "item.website = \"https://uproc.io\";\nitem.email = \"miquel@uproc.io\";\n\nreturn item;"
      },
      "typeVersion": 1,
      "id": "node-d947873b"
    },
    {
      "name": "Send Email",
      "type": "n8n-nodes-base.awsSes",
      "position": [
        1660,
        600
      ],
      "parameters": {
        "body": "=Hi,\n

\nThese are your screenshots:
\n
\n
\nSimple screenshot	Fullpage screenshot	\n
\n	\n	\n
\n
\n

\nThank you!",
        "subject": "Your screenshots!",
        "fromEmail": "miquel@uproc.io",
        "isBodyHtml": true,
        "toAddresses": [
          "={{$node[\"Create Web + Email Item\"].json[\"email\"]}}"
        ],
        "additionalFields": {}
      },
      "credentials": {
        "aws": "ses"
      },
      "typeVersion": 1,
      "id": "node-183fd16f"
    },
    {
      "name": "Generate FullPage",
      "type": "n8n-nodes-base.uproc",
      "position": [
        850,
        510
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "tool": "getUrlScreenshot",
        "group": "image",
        "width": "640",
        "fullpage": "yes",
        "additionalOptions": {}
      },
      "...

Output: The JSON is invalid because it is missing a closing brace '}' at the end of the file. Add the missing '}' to close the workflow object.

Add a closing brace '}' at the end of the JSON.


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:
{
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        320,
        170
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "node-e5da57f3"
    },
    {
      "name": "Merge",
      "type": "n8n-nodes-base.merge",
      "position": [
        960,
        320
      ],
      "parameters": {
        "mode": "mergeByIndex"
      },
      "typeVersion": 1,
      "id": "node-8abb1749"
    },
    {
      "name": "Move Binary Data",
      "type": "n8n-nodes-base.moveBinaryData",
      "position": [
        1260,
        320
      ],
      "parameters": {
        "mode": "jsonToBinary",
        "options": {
          "useRawData": false
        }
      },
      "typeVersion": 1,
      "id": "node-9f8567e1"
    },
    {
      "name": "Map",
      "type": "n8n-nodes-base.function",
      "position": [
        710,
        320
      ],
      "parameters": {
        "functionCode": "return items[0].json.data.map(item => {\n  return {json: item}\n});"
      },
      "typeVersion": 1,
      "id": "node-0b17bc48"
    },
    {
      "name": "Get Workflow",
      "type": "n8n-nodes-base.httpRequest",
      "notes": "Don't forget to add your credentials for your n8n instance in this Node. Use Basic Auth for this. ",
      "position": [
        830,
        460
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "authentication": "{{ $credentials.basicAuth }}",
        "_injected_number_field": "not_a_number"
      },
      "credentials": {
        "httpBasicAuth": "n8n Creds"
      },
      "notesInFlow": false,
      "typeVersion": 1,
      "id": "node-e2385e9d"
    },
    {
      "name": "Get Workflow List",
      "type": "n8n-nodes-base.httpRequest",
      "notes": "Don't forget to add your credentials for your n8n instance in this Node. Use Basic Auth for this. ",
      "position": [
        520,
        320
      ],
      "parameters": {
...

Output:
The node 'Get Workflow' 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 'Get Workflow'.


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:
{
  "nodes": [
    {
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        310,
        300
      ],
      "webhookId": "6be952e8-e30f-4dd7-90b3-bc202ae9f174",
      "parameters": {
        "path": "6be952e8-e30f-4dd7-90b3-bc202ae9f174",
        "options": {
          "rawBody": true
        },
        "httpMethod": "POST"
      },
      "typeVersion": 1,
      "id": "node-f629c597"
    },
    {
      "name": "SearchTorrent",
      "type": "n8n-nodes-base.functionItem",
      "position": [
        530,
        300
      ],
      "parameters": {
        "functionCode": "const TorrentSearchApi = require('torrent-search-api');\n\nTorrentSearchApi.enableProvider('KickassTorrents');\nTorrentSearchApi.enableProvider('Rarbg');\n\nitem.title = $node[\"Webhook\"].json[\"body\"].title.trim();\n\nconst torrents = await TorrentSearchApi.search(item.title, 'All', 5);\n\nitem.torrents = torrents;\nitem.found = true;\n\nif(!torrents.length)\n  item.found = false;\n  \nconsole.log('Done!');\n\nreturn item;"
      },
      "typeVersion": 1,
      "id": "node-d1756a8e"
    },
    {
      "name": "Start download",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        960,
        280
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "requestMethod": "POST",
        "authentication": "{{ $credentials.basicAuth }}",
        "jsonParameters": true,
        "bodyParametersJson": "={\"method\":\"torrent-add\",\"arguments\":{\"paused\":false,\"download-dir\":\"/media/FILM/TORRENT\",\"filename\":\"{{$node[\"SearchTorrent\"].json[\"torrents\"][0][\"magnet\"]}}\"}}",
        "headerParametersJson": "{\"X-Transmission-Session-Id\":\"xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx\"}"
      },
      "credentials": {
        "httpBasicAuth": "Transmission-basic-auth"
      },
      "typeVersion": 1,
      "continueOnFail": true,
      "id": "node-612c79e9"
    },
    {
      "name": "IF",
 ...

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.


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": "14",
  "name": "extract_swifts",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -140,
        820
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "node-e7b4b603"
    },
    {
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        320,
        820
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "responseFormat": "string"
      },
      "typeVersion": 1,
      "id": "node-0466b065"
    },
    {
      "name": "HTML Extract",
      "type": "n8n-nodes-base.htmlExtract",
      "position": [
        510,
        820
      ],
      "parameters": {
        "options": {},
        "extractionValues": {
          "values": [
            {
              "key": "countries",
              "attribute": "href",
              "cssSelector": "ol > li > a",
              "returnArray": true,
              "returnValue": "attribute"
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "node-a16e57d5"
    },
    {
      "name": "SplitInBatches",
      "type": "n8n-nodes-base.splitInBatches",
      "position": [
        910,
        820
      ],
      "parameters": {
        "options": {
          "reset": false
        },
        "batchSize": 1
      },
      "typeVersion": 1,
      "id": "node-e5183d87"
    },
    {
      "name": "HTTP Request1",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        2250,
        740
      ],
      "parameters": {
        "url": "{{ $env.BASE_URL }}",
        "options": {},
        "responseFormat": "file"
      },
      "typeVersion": 1,
      "id": "node-c9fcffa2"
    },
    {
      "name": "HTML Extract1",
      "type": "n8n-nodes-base.htmlExtract",
      "position": [
        2750,
        590
      ],
      "parameters": {
        "options": {},
        "sourceData": "binary",
        "extra...

Output:
In node 'Write Binary File', the parameter 'dataPropertyName' contains an expression that references undefined data.

**Faulty Expression**: `={{ $json.deeply.nested.undefined.path }}`
**Original Value**: `=data`

**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 'Write Binary File' parameter 'dataPropertyName'.


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:
{
  "nodes": [
    {
      "id": "trigger-6f7282d3:
      "name": "Manual Trigger",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {}
    },
    {
      "name": "FileMaker response.data",
      "type": "n8n-nodes-base.itemLists",
      "position": [
        600,
        -580
      ],
      "parameters": {
        "options": {},
        "fieldToSplitOut": "=response.data"
      },
      "typeVersion": 1,
      "id": "14626f25-51b8-42af-9059-fa7df292b863",
      "notes": "This itemLists node performs automated tasks as part of the workflow."
    },
    {
      "name": "Return item.fieldData",
      "type": "n8n-nodes-base.functionItem",
      "position": [
        800,
        -580
      ],
      "parameters": {
        "functionCode": "return item.fieldData;\n"
      },
      "typeVersion": 1,
      "id": "a3309b2e-b197-450b-aacf-ecbed19de019",
      "notes": "This functionItem node performs automated tasks as part of the workflow."
    },
    {
      "name": "FileMaker Data API Contacts",
      "type": "n8n-nodes-base.function",
      "position": [
        400,
        -580
      ],
      "parameters": {
        "functionCode": "return [{ json: \n\n{\n\t\"response\": {\n\t\t\"dataInfo\": {\n\t\t\t\"database\": \"WorkflowSampleData\",\n\t\t\t\"layout\": \"Contacts\",\n\t\t\t\"table\": \"Contacts\",\n\t\t\t\"totalRecordCount\": 500,\n\t\t\t\"foundCount\": 500,\n\t\t\t\"returnedCount\": 100\n\t\t},\n\t\t\"data\": [{\n\t\t\t\"fieldData\": {\n\t\t\t\t\"first_name\": \"James\",\n\t\t\t\t\"last_name\": \"Butt\",\n\t\t\t\t\"company_name\": \"Benton, John B Jr\",\n\t\t\t\t\"address\": \"6649 N Blue Gum St\",\n\t\t\t\t\"city\": \"New Orleans\",\n\t\t\t\t\"county\": \"Orleans\",\n\t\t\t\t\"state\": \"LA\",\n\t\t\t\t\"zip\": \"70116\",\n\t\t\t\t\"phone1\": \"504-621-8927\",\n\t\t\t\t\"phone2\": \"504-845-1427\",\n\t\t\t\t\"email\": \"jbutt@gmail.com\",\n\t\t\t\t\"web\": \"{{ $env.WE...

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: 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-8baa42fe",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.079974",
    "updatedAt": "2025-09-29T07:07:45.079990",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "28349bfd-f68e-4479-9508-28d408033d09",
      "name": "Get customers",
      "type": "n8n-nodes-base.stripe",
      "position": [
        5360,
        1100
      ],
      "parameters": {
        "filters": {},
        "resource": "customer",
        "operation": "getAll",
        "returnAll": true
      },
      "credentials": {
        "stripeApi": {
          "id": "{{ $credentials.stripeApi.id }}",
          "name": "Stripe account"
        }
      },
      "typeVersion": 1,
      "notes": "This stripe node performs automated tasks as part of the workflow."
    },
    {
      "id": "3f3d2389-e9ab-4140-8b04-f0a07003cecc",
      "name": "Rename fields and keep only needed fields",
      "type": "n8n-nodes-base.set",
      "position": [
        5560,
        1100
      ],
      "parameters": {
        "values": {
          "string": [
            {
              "name": "customerName",
              "value": "={{ $json[\"name\"] }}"
            },
            {
              "name": "customerId",
              "value": "={{ $json[\"id\"] }}"
            }
          ]
        },
        "options": {},
        "keepOnlySet": true
      },
      "typeVersion": 1,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "d6d3ccff-f565-49c9-9cda-8e278d298433",
      "name": "Add customer name to charge data",
      "type": "n8n-nodes-base.merge",
      "position": [
        5860,
        920
      ],
      "parameters": {
        "mode": "mergeByKey",
        "propertyName1": "customer",
        "propertyName2": "customerId"
      },
      "typeVersion": 1,
     ...

Output:
The node 'Get last execution timestamp' 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 'Get last execution timestamp'.


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-094d2745",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.068570",
    "updatedAt": "2025-09-29T07:07:45.068609",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "e95fc182-b13e-4eab-852b-66ea821c4129",
      "name": "On product created",
      "type": "n8n-nodes-base.pipedriveTrigger",
      "position": [
        440,
        500
      ],
      "webhookId": "4a700bc2-a3bf-43fb-902c-5ca5a74bf38d",
      "parameters": {
        "action": "added",
        "object": "product"
      },
      "credentials": {
        "pipedriveApi": {
          "id": "{{ $credentials.pipedriveApi.id }}",
          "name": "Pipedrive account"
        }
      },
      "typeVersion": 1,
      "notes": "This pipedriveTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "a64af9df-3084-4376-ace9-50f0f21bbf35",
      "name": "Set item to only current product data",
      "type": "n8n-nodes-base.functionItem",
      "position": [
        680,
        500
      ],
      "parameters": {
        "functionCode": "// Code here will run once per input item.\n// More info and help: {{ $env.WEBHOOK_URL }}\n// Tip: You can use luxon for dates and $jmespath for querying JSON structures\n\n// Add a new field called 'myNewField' to the JSON of the item\nitem = item.current;\n\n// You can write logs to the browser console\nconsole.log('Done!');\n\nreturn item;"
      },
      "typeVersion": 1,
      "notes": "This functionItem node performs automated tasks as part of the workflow."
    },
    {
      "id": "79b265a9-4021-4a1a-9b4a-4f3aeace9fe5",
      "name": "Create product in Stripe",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        900,
        660
      ],
      "parameters": {
        "url": "{{ $env.API_BASE_URL }}",
        "options": {},
     ...

Output:
The workflow has a broken data flow. The node '79b265a9-4021-4a1a-9b4a-4f3aeace9fe5' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '79b265a9-4021-4a1a-9b4a-4f3aeace9fe5'.

**Impact**: Data from '79b265a9-4021-4a1a-9b4a-4f3aeace9fe5' 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 '79b265a9-4021-4a1a-9b4a-4f3aeace9fe5' 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": {
  "79b265a9-4021-4a1a-9b4a-4f3aeace9fe5": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect '79b265a9-4021-4a1a-9b4a-4f3aeace9fe5' to the workflow.


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-f3c7eb2c",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:45.073546",
    "updatedAt": "2025-09-29T07:07:45.073563",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "4704e44a-80c6-41b4-a0b9-ece060d53836",
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        -220,
        300
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "74a78b35-b453-4345-8cd9-9d8a62961c29",
      "name": "Customer Datastore",
      "type": "n8n-nodes-base.n8nTrainingCustomerDatastore",
      "position": [
        20,
        300
      ],
      "parameters": {
        "operation": "getAllPeople",
        "returnAll": true
      },
      "typeVersion": 1,
      "notes": "This n8nTrainingCustomerDatastore node performs automated tasks as part of the workflow."
    },
    {
      "id": "10b633de-e5e5-4fd2-bb4b-7a16bac5f69c",
      "name": "Item Lists",
      "type": "n8n-nodes-base.itemLists",
      "position": [
        220,
        300
      ],
      "parameters": {
        "options": {},
        "operation": "sort",
        "sortFieldsUi": {
          "sortField": [
            {
              "fieldName": "name"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This itemLists node performs automated tasks as part of the workflow."
    },
    {
      "id": "aa90be4e-f548-459f-822b-a3dc1d20d58e",
      "name": "One item per template",
      "type": "n8n-nodes-document-generator.DocumentGenerator",
      "position": [
        660,
        160
      ],
      "parameters": {
        "template": "Date: {{created}}\nTo: {{name}} <{{email}}>\nAddress: {{country}}\nDetails:\n{{#each lines}}\...

Output:
The node 'One item per template' 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 'One item per template'.