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": "PtPKIqDlz5xrrvHP",
  "meta": {
    "instanceId": "workflow-8eedc09f",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.106950",
    "updatedAt": "2025-09-29T07:07:52.107031",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Sync Todoist tasks to Notion",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "0122196d-e051-4154-9e39-3ddbfe26858f",
      "name": "On schedule",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        640,
        280
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "field": "seconds"
            }
          ]
        }
      },
      "typeVersion": 1.1,
      "notes": "This scheduleTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "1a15e1cc-cdd5-4a49-aa7a-a0779f858e69",
      "name": "Get all tasks with specific label",
      "type": "n8n-nodes-base.todoist",
      "position": [
        860,
        280
      ],
      "parameters": {
        "filters": {
          "labelId": "send-to-notion"
        },
        "operation": "getAll",
        "authentication": "{{ $credentials.oAuth2 }}"
      },
      "typeVersion": 2,
      "notes": "This todoist node performs automated tasks as part of the workflow."
    },
    {
      "id": "35b13f4a-da38-4d63-9fbf-7c36c97cbc11",
      "name": "Add to Notion database",
      "type": "n8n-nodes-base.notion",
      "position": [
        1080,
        280
      ],
      "parameters": {
        "title": "={{ $json.content }}",
        "options": {},
        "resource": "databasePage",
        "databaseId": {
          "__rl": true,
          "mode": "list",
          "value": "5a98bd24-dd2b-41a3-b7e2-3b8a9ee21d41",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
 ...

Output:
The node 'Get all tasks with specific label' (type: n8n-nodes-base.todoist) 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": {
  "todoistOAuth2Api": {
    "id": "E6PTOAR6ysBeLwCB",
    "name": "Todoist 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 'Get all tasks with specific label' 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": "Qj1307oyBx1hZJy5",
  "meta": {
    "instanceId": "workflow-214b51ae",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.088088",
    "updatedAt": "2025-09-29T07:07:52.088098",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "SSL Expiry Alert",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "260b66a2-0841-4dc7-9666-acbc9317fd91",
      "name": "URLs to Monitor",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        1120,
        -120
      ],
      "parameters": {
        "columns": {
          "value": {
            "URL": "{{ $env.BASE_URL }}",
            "KnownExpiryDate": "={{ $json.result.valid_till }}"
          },
          "schema": [
            {
              "id": "Website ",
              "type": "string",
              "display": true,
              "removed": true,
              "required": false,
              "displayName": "Website ",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "URL",
              "type": "string",
              "display": true,
              "removed": false,
              "required": false,
              "displayName": "URL",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "KnownExpiryDate",
              "type": "string",
              "display": true,
              "required": false,
              "displayName": "KnownExpiryDate",
              "defaultMatch": false,
              "canBeUsedToMatch": true
            },
            {
              "id": "row_number",
              "type": "string",
              "display": true,
              "removed": true,
              "readOnly": true,
              "required": false...

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: 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": "RJ4PaYq0JBr29KJm",
  "meta": {
    "instanceId": "workflow-751a3b18",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.093990",
    "updatedAt": "2025-09-29T07:07:52.094002",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Reschedule overdue Asana tasks and clean up completed tasks",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "9262720e-2beb-4426-a472-3d7bf8bc28af",
      "name": "Everyday at 7am",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        80,
        -520
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "triggerAtHour": 7
            }
          ]
        }
      },
      "typeVersion": 1.2,
      "notes": "This scheduleTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "0d074451-5d61-4ed4-86a8-f6cdf002e84b",
      "name": "Get user tasks",
      "type": "n8n-nodes-base.asana",
      "position": [
        320,
        -520
      ],
      "parameters": {
        "filters": {
          "assignee": "1201727447190193",
          "workspace": "1201727656813934",
          "completed_since": "={{ DateTime.now().format('yyyy-MM-dd') }}"
        },
        "operation": "getAll",
        "returnAll": true
      },
      "credentials": {
        "asanaApi": {
          "id": "u7fFpY0SmMcpBCdn",
          "name": "Asana account"
        }
      },
      "typeVersion": 1,
      "notes": "This asana node performs automated tasks as part of the workflow."
    },
    {
      "id": "14939268-9bda-4fc1-9fef-aa6a74c2365a",
      "name": "Get task infos",
      "type": "n8n-nodes-base.asana",
      "position": [
        540,
        -520
      ],
      "parameters": {
        "id": "={{ $json.gid }}",
        "operation": "ge...

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: 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": "TqnC0nyAa0LRfYBX",
  "meta": {
    "instanceId": "workflow-d76be73e",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.130458",
    "updatedAt": "2025-09-29T07:07:52.130760",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Amazon Product Price Tracker",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "cc15c8e6-53f9-4dd1-895f-34a72af4506f",
      "name": "Products to Monitor",
      "type": "n8n-nodes-base.googleSheets",
      "position": [
        40,
        -220
      ],
      "parameters": {
        "options": {},
        "sheetName": {
          "__rl": true,
          "mode": "list",
          "value": "gid=0",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "Products to Monitor"
        },
        "documentId": {
          "__rl": true,
          "mode": "url",
          "value": "={{ $json.spreadsheet_url }}"
        }
      },
      "credentials": {
        "googleSheetsOAuth2Api": {
          "id": "xWJJNb7VGUUp4vzV",
          "name": "Google Sheets account 2"
        }
      },
      "typeVersion": 4.5,
      "notes": "This googleSheets node performs automated tasks as part of the workflow."
    },
    {
      "id": "4ec34045-ea02-40bc-a243-b50c804ab947",
      "name": "Loop Over Items",
      "type": "n8n-nodes-base.splitInBatches",
      "position": [
        260,
        -220
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 3,
      "notes": "This splitInBatches node performs automated tasks as part of the workflow."
    },
    {
      "id": "d5cdb7eb-144f-477b-83d6-85be5cd2eb79",
      "name": "Scrapeops - Amazon Product",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        720,
        -80
      ],
      "parameters": {
        ...

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: 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": "d45cf237-dbbc-48ed-a7f0-fa9506ae1d67",
      "name": "Update priority in todoist",
      "type": "n8n-nodes-base.todoist",
      "position": [
        2060,
        520
      ],
      "parameters": {
        "taskId": "={{ $('Get inbox tasks').item.json.id }}",
        "operation": "update",
        "updateFields": {
          "priority": "={{ $('Your Projects').first().json.projects[$json.message.content] }}"
        }
      },
      "credentials": {
        "todoistApi": {
          "id": "{{ $credentials.todoistApi.id }}",
          "name": "Todoist account"
        }
      },
      "retryOnFail": true,
      "typeVersion": 2,
      "waitBetweenTries": 5000,
      "notes": "This todoist node performs automated tasks as part of the workflow."
    },
    {
      "id": "4d0ebf98-5a1d-4dfd-85df-da182b3c5099",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        600,
        520
      ],
      "parameters": {
        "rule": {
          "interval": [
            {}
          ]
        }
      },
      "typeVersion": 1.2,
      "notes": "This scheduleTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "a950e470-6885-42f4-9b17-7b2c2525d3e4",
      "name": "Get inbox tasks",
      "type": "n8n-nodes-base.todoist",
      "position": [
        1020,
        520
      ],
      "parameters": {
        "filters": {
          "projectId": "938017196"
        },
        "operation": "getAll",
        "returnAll": true
      },
      "credentials": {
        "todoistApi": {
          "id": "{{ $credentials.todoistApi.id }}",
          "name": "Todoist account"
        }
      },
      "retryOnFail": true,
      "typeVersion": 2,
      "waitBetweenTries": 5000,
      "notes": "This todoist node performs automated tasks as part of the workflow."
    },
    {
      "id": "093bcb2e-79b7-427e-b13d-540a5b28f427",
      "name": "Sticky Note",
      "type": "n8...

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

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

**Solution**: Add the credentials configuration back to the node:
```json
"credentials": {
  "openAiApi": {
    "id": "{{ $credentials.openAiApi.id }}",
    "name": "n8n OpenAi"
  }
}
```

**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 'Categorize' 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:
{
  "id": "VtiRiIGkdeUhyh0N",
  "meta": {
    "instanceId": "workflow-c8a3b2bb",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.146983",
    "updatedAt": "2025-09-29T07:07:52.147030",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "GoogleSheets MySQL Integration",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "ec43f0df-338b-462f-9195-b20024e83ba1",
      "name": "When clicking \"Execute Workflow\"",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        720,
        500
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "e9fd1af3-dcf8-4442-958d-cb8390c85263",
      "name": "Compare Datasets",
      "type": "n8n-nodes-base.compareDatasets",
      "position": [
        1380,
        380
      ],
      "parameters": {
        "options": {
          "skipFields": "record_created,record_updated,id"
        },
        "mergeByFields": {
          "values": [
            {
              "field1": "timestamp",
              "field2": "timestamp"
            },
            {
              "field1": "source_name",
              "field2": "source_name"
            }
          ]
        }
      },
      "typeVersion": 2.3,
      "notes": "This compareDatasets node performs automated tasks as part of the workflow."
    },
    {
      "id": "5b14d739-9037-48a8-9990-5b8ac3318b1c",
      "name": "Send Notifications",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1840,
        260
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This noOp node performs automated tasks as part of the workflow."
    },
    {
      "id": "10ff3339-9091-4ea2-be4e-12a91208e27d",
      "name": "Sche...

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: 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": "WceMkVib0VLlF1BZ",
  "meta": {
    "instanceId": "workflow-c4828a28",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.148504",
    "updatedAt": "2025-09-29T07:07:52.148519",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Vector DB Loader from Google Drive",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "6652e41a-d14a-4e17-9dcd-34df114d219a",
      "name": "Default Data Loader",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1240,
        1100
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1,
      "notes": "This documentDefaultDataLoader node performs automated tasks as part of the workflow."
    },
    {
      "id": "8ae38b72-52fd-46bc-ab47-50bebe5ac4ee",
      "name": "Recursive Character Text Splitter",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1320,
        1300
      ],
      "parameters": {
        "options": {},
        "chunkOverlap": 50
      },
      "typeVersion": 1,
      "notes": "This textSplitterRecursiveCharacterTextSplitter node performs automated tasks as part of the workflow."
    },
    {
      "id": "57ce64af-88d4-4dc4-8c8e-01717c1bd47d",
      "name": "Embeddings OpenAI",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1120,
        1100
      ],
      "parameters": {
        "model": "text-embedding-3-small",
        "options": {}
      },
      "credentials": {
        "openAiApi": {
          "id": "fzLcLisovaZjIqma",
          "name": "AlexK OpenAi account"
        }
      },
      "typeVersion": 1,
      "notes": "This embeddingsOpenAi node performs automated tasks as part of the workflow."
    },
    {
      "id": "e6bed8bc-f629-41fd-aa6e-9158b1cbc323",
      "name": "Postgres PGVector Store",
      "type": "n...

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: 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": "cGqPi5Uy2u1ShmoO",
  "meta": {
    "instanceId": "workflow-52a17087",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.169629",
    "updatedAt": "2025-09-29T07:07:52.169661",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "\ud83d\udcbb Schedule workflow activity time",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "294244fd-8c35-4b70-af84-cc466a60541f",
      "name": "n8n Activate",
      "type": "n8n-nodes-base.n8n",
      "position": [
        360,
        -180
      ],
      "parameters": {
        "operation": "activate",
        "workflowId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $json.workflowID }}"
        },
        "requestOptions": {}
      },
      "credentials": {
        "n8nApi": {
          "id": "zYX6aInNigxW08J2",
          "name": "n8n acc for Gitlab/hub sync of repos"
        }
      },
      "typeVersion": 1,
      "notes": "This n8n node performs automated tasks as part of the workflow."
    },
    {
      "id": "e669e5e3-288a-4d6b-af12-011340e60f64",
      "name": "n8n Deactivate",
      "type": "n8n-nodes-base.n8n",
      "position": [
        360,
        140
      ],
      "parameters": {
        "operation": "deactivate",
        "workflowId": {
          "__rl": true,
          "mode": "id",
          "value": "={{ $json.workflowID }}"
        },
        "requestOptions": {}
      },
      "credentials": {
        "n8nApi": {
          "id": "zYX6aInNigxW08J2",
          "name": "n8n acc for Gitlab/hub sync of repos"
        }
      },
      "typeVersion": 1,
      "notes": "This n8n node performs automated tasks as part of the workflow."
    },
    {
      "id": "a9c7337f-d0ca-4e7e-873d-1d38813f2717",
      "name": "Workflow ID",
      "type": "n8n-nodes-base.set",
   ...

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: 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": "fvYgcG9s1pqP5cQ6",
  "meta": {
    "instanceId": "workflow-b69882aa",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.175053",
    "updatedAt": "2025-09-29T07:07:52.175069",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Monitor ProductHunt",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "3cf0b7e0-ec9f-4173-bc85-1b4daef5aa22",
      "name": "Define relevant products",
      "type": "n8n-nodes-base.set",
      "position": [
        220,
        -100
      ],
      "parameters": {
        "options": {},
        "assignments": {
          "assignments": [
            {
              "id": "a83156e0-1782-4d0a-a15c-1ff889ff915d",
              "name": "Relevant Products",
              "type": "string",
              "value": "AI Agents"
            }
          ]
        }
      },
      "typeVersion": 3.4,
      "notes": "This set node performs automated tasks as part of the workflow."
    },
    {
      "id": "a316f080-0fd8-4723-a65c-bce2c2a13cf8",
      "name": "Found products?",
      "type": "n8n-nodes-base.if",
      "position": [
        660,
        -100
      ],
      "parameters": {
        "options": {},
        "conditions": {
          "options": {
            "version": 2,
            "leftValue": "",
            "caseSensitive": true,
            "typeValidation": "strict"
          },
          "combinator": "and",
          "conditions": [
            {
              "id": "552c61c2-1ec0-40b5-b473-2423b646418b",
              "operator": {
                "type": "string",
                "operation": "notContains"
              },
              "leftValue": "={{ $json.data.modelResponse }}",
              "rightValue": "[NA]"
            }
          ]
        }
      },
      "typeVersion": 2.2,
      "notes": "This ...

Output:
The node 'Trigger daily' 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 'Trigger daily'.


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": "gemC8tYGZk3LtBHG:
  "meta": {
    "instanceId": "workflow-61b7a640",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.178124",
    "updatedAt": "2025-09-29T07:07:52.178135",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Spotify Sync Liked Songs to Playlist",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "7767a08e-43f0-4c07-968c-06dab188bf86",
      "name": "Start",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        160,
        220
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "9193f532-335e-4a6a-886e-64849f6fab55",
      "name": "Schedule Trigger",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        180,
        -100
      ],
      "parameters": {
        "rule": {
          "interval": [
            {}
          ]
        }
      },
      "typeVersion": 1.1,
      "notes": "This scheduleTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "41cffeb0-9dd5-4f71-8519-19f7339e2102",
      "name": "Sort first added to first item",
      "type": "n8n-nodes-base.sort",
      "position": [
        1480,
        -60
      ],
      "parameters": {
        "options": {},
        "sortFieldsUi": {
          "sortField": [
            {
              "fieldName": "added_at"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This sort node performs automated tasks as part of the workflow."
    },
    {
      "id": "ed77edb1-25d4-4330-a6ad-3864117172e3",
      "name": "Gotify Send deleted n from x",
      "type": "n8n-nodes-base.gotify",
      "position": [
        3540,
        220
      ],
      "param...

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: 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": "nV1xFcF5HWJcD6w7",
  "meta": {
    "instanceId": "workflow-ec356036",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.181150",
    "updatedAt": "2025-09-29T07:07:52.181165",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Automatically Send Daily Meeting List to Telegram",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "eee04fe7-7f65-4db8-8ad8-7b67197a1f70",
      "name": "Get meetings for today",
      "type": "n8n-nodes-base.googleCalendar",
      "position": [
        1240,
        580
      ],
      "parameters": {
        "options": {
          "timeMax": "={{ $today.plus({ days: 1 }) }}",
          "timeMin": "={{ $today }}",
          "singleEvents": true
        },
        "calendar": {
          "__rl": true,
          "mode": "list",
          "value": "lrnr6ha3nt9cv8i0fimup684e4@group.calendar.google.com",
          "cachedResultName": "Meeting Room"
        },
        "operation": "getAll"
      },
      "credentials": {
        "googleCalendarOAuth2Api": {
          "id": "BSvdyVkCIqvVagsr",
          "name": "Google Calendar account"
        }
      },
      "typeVersion": 1,
      "notes": "This googleCalendar node performs automated tasks as part of the workflow."
    },
    {
      "id": "358ab462-d69f-4980-99fd-de5a22a3c783",
      "name": "Every morning @ 6",
      "type": "n8n-nodes-base.scheduleTrigger",
      "position": [
        940,
        580
      ],
      "parameters": {
        "rule": {
          "interval": [
            {
              "triggerAtHour": 6
            }
          ]
        }
      },
      "typeVersion": 1.1,
      "notes": "This scheduleTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "57f77b4e-d608-4929-bc49-2dfecff88c8d",
      "name": "Set",...

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": "pcLi17oUJK9pSaee",
  "meta": {
    "instanceId": "workflow-08dc291a",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.182341",
    "updatedAt": "2025-09-29T07:07:52.182355",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Web Server Monitor.",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "014e1202-3822-4d3f-817e-31f64c8bd5f5",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        -680,
        -440
      ],
      "parameters": {
        "width": 560,
        "height": 540,
        "content": "\ud83d\udcd8 Node Descriptions for Your Web Server Monitor Workflow\n\n\u23f0 1. Schedule Trigger  \nTriggers the workflow every minute to initiate regular checks on server availability.\n\n\ud83d\udcc4 2. Web Servers List (Google Sheets)  \nFetches a list of server hostnames or IP addresses from a Google Sheet.  \nEach row is treated as one server. This makes server management easy \u2014 no need to edit the workflow to add/remove servers.\n\n\ud83c\udf10 3. Server Alive Check (HTTP) \nSends an HTTP GET request to each server (e.g., {{ $env.WEBHOOK_URL }}  \nIf the request fails, the error path is triggered.  \n\n\ud83d\udcdd 4. Web Server Alive Log (Google Sheets)  \nLogs successful server checks into a separate Sheet with a timestamp.\nThis log helps track uptime history, verify server health, and generate availability reports.\n\n\ud83d\udea8\ud83d\udce7 5. Server Down Notification (Gmail)  \nSends an alert email if a server does not respond or returns an error.  \nIncludes the server address and the timestamp of failure.\n\n\ud83d\udcdd 6. Web Server Down Log (Google Sheets)\nLogs the failed server checks into another Sheet with a timestamp.  \nUseful for uptime reporting, debugging, and aud...

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

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

**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 'Server_Status_Alive' parameter 'operation'.


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-1522b2e2",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.211362",
    "updatedAt": "2025-09-29T07:07:52.211375",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "d2a24a9b-9cf3-4de0-82e7-5d858658d4b4",
      "name": "Extract specific content",
      "type": "n8n-nodes-base.html",
      "notes": "Extract selected headlines, editor's picks, spotlight etc.",
      "position": [
        800,
        340
      ],
      "parameters": {
        "options": {
          "cleanUpText": true
        },
        "operation": "extractHtmlContent",
        "extractionValues": {
          "values": [
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "cssSelector": "#site-content > div:nth-child(1) > section > div > div > div.layout-desktop__grid.layout-desktop__grid--span4.layout-desktop__grid--column-start-1.layout-desktop__grid--row-start-1.layout-desktop__grid--with-border.layout--default > div > div > div > div.story-group-stacked__primary-story > div > div > div > div > div.primary-story__teaser"
            },
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "cssSelector": "#site-content > div:nth-child(1) > section > div > div > div.layout-desktop__grid.layout-desktop__grid--span6.layout-desktop__grid--column-start-5.layout-desktop__grid--row-start-1.layout-desktop__grid--with-border.layout--default > div > div > div > div > div > div.story-group__article.story-group__article--featured > div > div.featured-story-content > div.headline.js-teaser-headline.headline--scale-5.headline--color-black > a > span"
            },
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "cssSelector": "#site-content > div:nth-child(1) > section > div > div > div.layout-desktop__grid.layout-desktop__grid--span2.layout-desktop_...

Output:
The workflow has a broken data flow. The node '38af5df2-65ce-4f04-aed3-6f71d81a37df' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '38af5df2-65ce-4f04-aed3-6f71d81a37df'.

**Impact**: Data from '38af5df2-65ce-4f04-aed3-6f71d81a37df' 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 '38af5df2-65ce-4f04-aed3-6f71d81a37df' 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": {
  "38af5df2-65ce-4f04-aed3-6f71d81a37df": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect '38af5df2-65ce-4f04-aed3-6f71d81a37df' to the workflow.


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:
{
  "nodes": [
    {
      "name": "Twitter",
      "type": "n8n-nodes-base.twitter",
      "position": [
        720,
        -220
      ],
      "parameters": {
        "text": "=Hey there, my design is now on a new product \u2728\nVisit my {{$json[\"vendor\"]}} shop to get this cool{{$json[\"title\"]}} (and check out more {{$json[\"product_type\"]}}) \ud83d\udecd\ufe0f",
        "additionalFields": {}
      },
      "credentials": {
        "twitterOAuth1Api": "twitter"
      },
      "typeVersion": 1,
      "id": "8c187e0b-a9f2-47be-a172-4d205e0fdc01",
      "notes": "This twitter node performs automated tasks as part of the workflow."
    },
    {
      "name": "Telegram",
      "type": "n8n-nodes-base.telegram",
      "position": [
        720,
        -20
      ],
      "parameters": {
        "text": "=Hey there, my design is now on a new product!\nVisit my {{$json[\"vendor\"]}} shop to get this cool{{$json[\"title\"]}} (and check out more {{$json[\"product_type\"]}})",
        "chatId": "123456",
        "additionalFields": {}
      },
      "credentials": {
        "telegramApi": "telegram_habot"
      },
      "typeVersion": 1,
      "id": "f31b896d-c6de-4b08-9144-2b9ee98ca6bc",
      "notes": "This telegram node performs automated tasks as part of the workflow."
    },
    {
      "name": "product created",
      "type": "n8n-nodes-base.shopifyTrigger",
      "position": [
        540,
        -110
      ],
      "webhookId": "2a7e0e50-8f09-4a2b-bf54-a849a6ac4fe0",
      "parameters": {
        "topic": "products/create"
      },
      "credentials": {
        "shopifyApi": "shopify_nodeqa"
      },
      "typeVersion": 1,
      "id": "6f1afddb-4110-4107-9ce4-cdbfea1d6da4",
      "notes": "This shopifyTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-3398f40c",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
    ...

Output:
In node 'Error Handler', the parameter 'message' contains an expression that references undefined data.

**Faulty Expression**: `={{ $node.NonExistentNode.json.data }}`
**Original Value**: `Workflow execution error`

**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 'Error Handler' parameter 'message'.


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": 13,
  "name": "Creating an Onfleet Task for a new Shopify Fulfillment",
  "nodes": [
    {
      "name": "Shopify Trigger",
      "type": "n8n-nodes-base.shopifyTrigger",
      "position": [
        240,
        440
      ],
      "webhookId": "576e8785-bbb4-426b-a922-da671efced68",
      "parameters": {
        "topic": "fulfillments/create"
      },
      "credentials": {
        "shopifyApi": {
          "id": "{{ $credentials.shopifyApi.id }}",
          "name": "Shopify account"
        }
      },
      "typeVersion": 1,
      "id": "d363331a-ed1b-4cd8-a0d6-c9d9f1c7be92",
      "notes": "This shopifyTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Onfleet",
      "type": "n8n-nodes-base.onfleet",
      "position": [
        460,
        440
      ],
      "parameters": {
        "operation": "create",
        "additionalFields": {}
      },
      "credentials": {
        "onfleetApi": {
          "id": "{{ $credentials.onfleetApi.id }}",
          "name": "Onfleet API Key"
        }
      },
      "typeVersion": 1,
      "id": "2bf6900f-b888-4518-bfd6-35ad916033ac",
      "notes": "This onfleet node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-edecdaa0",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    },
    {
      "parameters": {
        "url": "https://api.example.com/data",
        "method": "GET",
        "options": {}
      },
      "name": "HTTP Request",
      "type": "n8n-nodes-base.httpRequest",
      "position": [
        450,
        300
      ]
    }
  ],
  "active": false,
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "exe...

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

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

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

**Solutions**:

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

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

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

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

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


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

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

Workflow JSON:
{
  "meta" {
    "instanceId": "workflow-98aa009d",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.258523",
    "updatedAt": "2025-09-29T07:07:52.258534",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "1b1fd43f-5acb-45e7-bd98-e4774754cdfe",
      "name": "On order updated",
      "type": "n8n-nodes-base.shopifyTrigger",
      "position": [
        180,
        520
      ],
      "webhookId": "0972ce92-d800-4049-ab60-7c71898ecbfa",
      "parameters": {
        "topic": "orders/updated"
      },
      "credentials": {
        "shopifyApi": {
          "id": "{{ $credentials.shopifyApi.id }}",
          "name": "Shopify account"
        }
      },
      "typeVersion": 1,
      "notes": "This shopifyTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "d96cde15-f810-4302-aa45-554f6675b505",
      "name": "Order exists in Zendesk",
      "type": "n8n-nodes-base.if",
      "position": [
        1220,
        540
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{ $json[\"ZendeskTicketId\"] }}",
              "operation": "isNotEmpty"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "id": "62c09ef2-55c8-4269-9869-c15e8a955169",
      "name": "NoOp",
      "type": "n8n-nodes-base.noOp",
      "position": [
        1500,
        460
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This noOp node performs automated tasks as part of the workflow."
    },
    {
      "id": "68f867c3-842c-478a-8afd-c7299e12b98d",
      "name": "Find if order already has a ticket in Zendesk",
      "type": "n8n-nodes-base.zendesk",
      "position": [
        480,
        660
      ],
      "...

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: 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-8316ec25",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.269350",
    "updatedAt": "2025-09-29T07:07:52.269381",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "a5f74e05-acea-4ff4-b3b2-5997850be036",
      "name": "On new customer",
      "type": "n8n-nodes-base.shopifyTrigger",
      "position": [
        180,
        420
      ],
      "webhookId": "8efd263c-73fb-481b-90d8-8ae0db929548",
      "parameters": {
        "topic": "customers/create",
        "authentication": "{{ $credentials.accessToken }}"
      },
      "credentials": {
        "shopifyAccessTokenApi": {
          "id": "{{ $credentials.shopifyAccessTokenApi.id }}",
          "name": "[UPDATE ME]"
        }
      },
      "typeVersion": 1,
      "notes": "This shopifyTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "5b4a9e71-3aa7-40d8-a439-79a504c60a46",
      "name": "Create contact",
      "type": "n8n-nodes-base.mautic",
      "position": [
        400,
        420
      ],
      "parameters": {
        "email": "={{$node[\"On new customer\"].json[\"email\"]}}",
        "options": {},
        "lastName": "={{$node[\"On new customer\"].json[\"last_name\"]}}",
        "firstName": "={{$node[\"On new customer\"].json[\"first_name\"]}}",
        "additionalFields": {}
      },
      "credentials": {
        "mauticApi": {
          "id": "{{ $credentials.mauticApi.id }}",
          "name": "[UPDATE ME]"
        }
      },
      "typeVersion": 1,
      "notes": "This mautic node performs automated tasks as part of the workflow."
    },
    {
      "id": "4b7b306e-1b4c-464f-b8f0-373167ded16f",
      "name": "Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        400,
        600
      ],
      "parameters": {
        "width": 332,
       ...

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: 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": "44PIIGwPzUe9dGfb",
  "meta": {
    "instanceId": "workflow-c6947a5a",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.260824",
    "updatedAt": "2025-09-29T07:07:52.260832",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Sync New Shopify Products to Odoo Product",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "5ad7f941-4146-4897-ad30-dcdccab85e82",
      "name": "Odoo6",
      "type": "n8n-nodes-base.odoo",
      "position": [
        320,
        0
      ],
      "parameters": {
        "limit": 1,
        "options": {},
        "resource": "custom",
        "operation": "getAll",
        "filterRequest": {
          "filter": [
            {
              "value": "={{ $('Shopify Trigger').all()[0].json.variants[0].product_id }}",
              "fieldName": "default_code"
            }
          ]
        },
        "customResource": "product.product"
      },
      "credentials": {
        "odooApi": {
          "id": "0qIK4Cq1BwOSbxT8",
          "name": "Odoo 148.66.157.208:8069"
        }
      },
      "typeVersion": 1,
      "alwaysOutputData": true,
      "notes": "This odoo node performs automated tasks as part of the workflow."
    },
    {
      "id": "1b1a3753-e645-465c-8155-ad8c006f3e13",
      "name": "Filter2",
      "type": "n8n-nodes-base.filter",
      "position": [
        740,
        0
      ],
      "parameters": {
        "conditions": {
          "boolean": [
            {
              "value1": "={{ $json.existing }}"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This filter node performs automated tasks as part of the workflow."
    },
    {
      "id": "5b388afc-de9a-4246-85a8-0ef4ec8ac0bc",
      "name": "Odoo7",
      "type": "n8n-nodes-base.odoo",
      "posit...

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: 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": "Shopify Trigger",
      "type": "n8n-nodes-base.shopifyTrigger",
      "position": [
        450,
        450
      ],
      "webhookId": "fd11b3d8-ff82-4902-89cc-c93b36ae38e7",
      "parameters": {
        "topic": "orders/create"
      },
      "credentials": {
        "shopifyApi": "shopify_creds"
      },
      "typeVersion": 1,
      "id": "16a141d0-dfa3-4653-8120-4d754bd9247d",
      "notes": "This shopifyTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-6d3ac7fc",
      "name": "Error Handler",
      "type": "n8n-nodes-base.stopAndError",
      "typeVersion": 1,
      "position": [
        1000,
        400
      ],
      "parameters": {
        "message": "Workflow execution error",
        "options": {}
      }
    }
  ],
  "connections": {},
  "name": "Shopifytrigger Workflow",
  "description": "Automated workflow: Shopifytrigger Workflow. This workflow processes data and performs automated tasks.",
  "settings": {
    "executionOrder": "v1",
    "saveManualExecutions": true,
    "callerPolicy": "workflowsFromSameOwner",
    "errorWorkflow": null,
    "timezone": "UTC",
    "executionTimeout": 3600,
    "maxExecutions": 1000,
    "retryOnFail": true,
    "retryCount": 3,
    "retryDelay": 1000
  },
  "meta": {
    "instanceId": "workflow-1f3d50b6",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.260305",
    "updatedAt": "2025-09-29T07:07:52.260316",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "notes": "Excellent quality workflow: Shopifytrigger Workflow. This workflow has been optimized for production use with comprehensive error handling, security, and documentation."
}...

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" "Zp0R3I1dUjZOIz2l",
  "meta": {
    "instanceId": "workflow-6c2ae933",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.291012",
    "updatedAt": "2025-09-29T07:07:52.291019",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "name": "Sync New Shopify Customers to Odoo Contacts",
  "tags": [
    "automation",
    "n8n",
    "production-ready",
    "excellent",
    "optimized"
  ],
  "nodes": [
    {
      "id": "ae072919-4f88-4722-b139-2628e24b89ba",
      "name": "Filter",
      "type": "n8n-nodes-base.filter",
      "position": [
        -420,
        -40
      ],
      "parameters": {
        "conditions": {
          "boolean": [
            {
              "value1": "={{ $json.existing }}"
            }
          ]
        }
      },
      "typeVersion": 1,
      "notes": "This filter node performs automated tasks as part of the workflow."
    },
    {
      "id": "a36747d5-3381-43b8-9def-e3dbc8942dbd",
      "name": "Search Odoo Contact",
      "type": "n8n-nodes-base.odoo",
      "position": [
        -800,
        -40
      ],
      "parameters": {
        "limit": 1,
        "options": {},
        "resource": "custom",
        "operation": "getAll",
        "filterRequest": {
          "filter": [
            {
              "value": "={{ $('Shopify Trigger').item.json.email }}",
              "fieldName": "email"
            }
          ]
        },
        "customResource": "res.partner"
      },
      "credentials": {
        "odooApi": {
          "id": "0qIK4Cq1BwOSbxT8",
          "name": "Odoo 148.66.157.208:8069"
        }
      },
      "typeVersion": 1,
      "alwaysOutputData": true,
      "notes": "This odoo node performs automated tasks as part of the workflow."
    },
    {
      "id": "a52d6acf-e8c2-48cd-b44c-903617c23e9e",
      "name": "Shopify Trigger",
      "type": "n8n-nodes-base.shopifyTrigger",
    ...

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


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: 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": "Function",
      "type": "n8n-nodes-base.function",
      "position": [
        230,
        710
      ],
      "parameters": {
        "functionCode": "// Code here will run only once, no matter how many input items there are.\n// More info and help: https://docs.n8n.io/nodes/n8n-nodes-base.function\n\n// Loop over inputs and add a new field called 'myNewField' to the JSON of each one\nfor (item of items) {\n  \nvar type = \"Status\";\n// Acknowledged\nif ((item.json.body.alert.statusCode == 2)  && (item.json.body.eventType == 201)) {\n    type = \"Acknowledged\";\n}\n// Closed\nif ((item.json.body.alert.statusCode == 4) & (item.json.body.eventType == 201)) {\n    type = \"Closed\";\n}\n// New Alert\nif ((item.json.body.alert.statusCode == 1) & (item.json.body.eventType == 200)) {\n    type = \"New Alert\";\n}\n\n// No one on duty\nif ((item.json.body.alert.statusCode == 16) & (item.json.body.eventType == 201)) {\n    type = \"No one on duty\";\n}\n \n// Annotation\nvar annotation = \"\";\nif ((item.json.body.eventType == 203) & (item.json.body.annotation != undefined) ) {\n    type = \"Annotated\";\n    annotation = item.json.body.annotation.message;\n}\nif (annotation != \"\") {\n    annotation = \": \" + annotation;\n}\n \nvar username = \"System\";\nif (item.json.body.user != undefined) {\n    username = item.json.body.user.username;\n}\n \nvar data = type + \" by \" + username + annotation;\n \nitem.json.s4Status = data; //  + \": \" + JSON.stringify(item.json);\n\n\nitem.json.s4Up = false;\nif (type == \"Closed\") {\n  item.json.s4Up = true;\n}\n\n}\n\n// You can write logs to the browser console\nconsole.log('Done!');\n\nreturn items;\n\n\n"
      },
      "typeVersion": 1,
      "id": "node-05b80966"
    },
    {
      "name": "Notion Trigger",
      "type": "n8n-nodes-base.notionTrigger",
      "disabled": true,
      "position": [
        230,
        210
      ],
      "parameters": {
        "event": "pageAddedToDatab...

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:
{
  "id": 100,
  "name": "On new Stripe Invoice Payment update Hubspot and notify the team in Slack",
  "nodes": [
    {
      "name": "When Invoice Paid",
      "type": "n8n-nodes-base.stripeTrigger",
      "position": [
        400,
        460
      ],
      "webhookId": "47727266-5233-48e5-b7f7-e47252840a4e",
      "parameters": {
        "events": [
          "invoice.payment_succeeded"
        ]
      },
      "credentials": {
        "stripeApi": {
          "id": "{{ $credentials.stripeApi.id }}",
          "name": "Stripe account"
        }
      },
      "typeVersion": 1,
      "id": "17a26229-e09d-4df9-918e-608d824da585",
      "notes": "This stripeTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Update Deal to Paid",
      "type": "n8n-nodes-base.hubspot",
      "position": [
        1240,
        500
      ],
      "parameters": {
        "dealId": "={{$json[\"id\"]}}",
        "operation": "update",
        "updateFields": {
          "customPropertiesUi": {
            "customPropertiesValues": [
              {
                "value": "Yes",
                "property": "paid"
              }
            ]
          }
        },
        "authentication": "{{ $credentials.oAuth2 }}"
      },
      "credentials": {
        "hubspotOAuth2Api": {
          "id": "{{ $credentials.hubspotOAuth2Api.id }}",
          "name": "Hubspot account 2"
        }
      },
      "typeVersion": 1,
      "id": "9a7ee4d8-14e5-4385-9b44-08781f8f9ff6",
      "notes": "This hubspot node performs automated tasks as part of the workflow."
    },
    {
      "name": "Find Deal based on PO Number",
      "type": "n8n-nodes-base.hubspot",
      "position": [
        820,
        480
      ],
      "parameters": {
        "operation": "search",
        "filterGroupsUi": {
          "filterGroupsValues": [
            {
              "filtersUi": {
                "filterValues": [
                  {
                    "value": "={{$jso...

Output:
The node 'Send invoice paid message' (type: n8n-nodes-base.slack) 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": {
  "slackApi": {
    "id": "{{ $credentials.slackApi.id }}",
    "name": "Slack Access Token"
  }
}
```

**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 'Send invoice paid message' 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:
{
  "nodes": [
    {
      "name": "Google Calendar",
      "type": "n8n-nodes-base.googleCalendar",
      "position": [
        540,
        -320
      ],
      "parameters": {
        "options": {},
        "calendar": "xxxxx@gmail.com",
        "operation": "getAll",
        "returnAll": true
      },
      "credentials": {
        "googleCalendarOAuth2Api": "Google Accounts"
      },
      "typeVersion": 1,
      "id": "ab6d1837-844d-4c99-88c6-8c27b5c6a0e4",
      "notes": "This googleCalendar node performs automated tasks as part of the workflow."
    },
    {
      "name": "Function",
      "type": "n8n-nodes-base.function",
      "position": [
        540,
        70
      ],
      "parameters": {
        "functionCode": "var date = new Date().toISOString();\nvar day = new Date().getDay();\nconst weekday = [\"Sunday\", \"Monday\", \"Tuesday\", \"Wednesday\", \"Thursday\", \"Friday\", \"Saturday\"];\n\nitems[0].json.date_today = date;\nitems[0].json.day_today = weekday[day];\n\nreturn items;"
      },
      "notesInFlow": false,
      "typeVersion": 1,
      "id": "31c11055-846c-47d7-9aa6-0f5cf93c2fb9",
      "notes": "This function node performs automated tasks as part of the workflow."
    },
    {
      "name": "Date & Time",
      "type": "n8n-nodes-base.dateTime",
      "position": [
        720,
        -320
      ],
      "parameters": {
        "value": "={{$json[\"start\"][\"dateTime\"]}}",
        "custom": true,
        "options": {
          "toTimezone": "Asia/Qatar"
        },
        "toFormat": "DD/MM/YYYY",
        "dataPropertyName": "Event Start Date Only"
      },
      "typeVersion": 1,
      "id": "98e575f6-ca00-41d5-9595-7d734a623096",
      "notes": "This dateTime node performs automated tasks as part of the workflow."
    },
    {
      "name": "If Node",
      "type": "n8n-nodes-base.if",
      "position": [
        1410,
        -110
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
          ...

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: 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": "Typeform Trigger",
      "type": "n8n-nodes-base.typeformTrigger",
      "position": [
        140,
        200
      ],
      "webhookId": "",
      "parameters": {
        "formId": ""
      },
      "credentials": {
        "typeformApi": {
          "id": "",
          "name": ""
        }
      },
      "typeVersion": 1,
      "id": "73899714-936e-4ba0-9cc3-b77e0120b3ec",
      "notes": "This typeformTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Slack1",
      "type": "n8n-nodes-base.slack",
      "position": [
        1360,
        300
      ],
      "parameters": {
        "text": "\ud83e\udd73 An existing lead has just subscribed!",
        "channel": "",
        "attachments": [],
        "otherOptions": {}
      },
      "credentials": {
        "slackApi": {
          "id": "",
          "name": ""
        }
      },
      "typeVersion": 1,
      "id": "49111827-a9eb-4e16-8983-d77604d50235",
      "notes": "This slack node performs automated tasks as part of the workflow."
    },
    {
      "name": "Airtable - Contact List",
      "type": "n8n-nodes-base.airtable",
      "position": [
        540,
        200
      ],
      "parameters": {
        "table": "Contacts",
        "operation": "list",
        "returnAll": false,
        "application": "",
        "additionalOptions": {
          "fields": [],
          "filterByFormula": "=fullName=\"{{$json[\"full_name\"]}}\""
        },
        "_injected_number_field": "not_a_number"
      },
      "credentials": {
        "airtableApi": {
          "id": "",
          "name": ""
        }
      },
      "executeOnce": false,
      "typeVersion": 1,
      "alwaysOutputData": true,
      "id": "9da5beb7-2c6f-4ad9-b526-ddda95eaad4f",
      "notes": "This airtable node performs automated tasks as part of the workflow."
    },
    {
      "name": "Airtable - Update Contacts1",
      "type": "n8n-nodes-base.airtable",
      "posit...

Output:
The node 'Airtable - Contact List' 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 'Airtable - Contact List'.


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": 14,
  "name": "Onfleet Driver signup message in Slack",
  "nodes": [
    {
      "name": "Onfleet Trigger",
      "type": "n8n-nodes-base.onfleetTrigger",
      "position": [
        460,
        300
      ],
      "webhookId": "a005e163-13a2-4ea2-a127-6e00e30a82f4",
      "parameters": {
        "triggerOn": "workerCreated",
        "additionalFields": {}
      },
      "credentials": {
        "onfleetApi": {
          "id": "{{ $credentials.onfleetApi.id }}",
          "name": "Onfleet API Key"
        }
      },
      "typeVersion": 1,
      "id": "526aaef1-42dc-4293-99ab-a77a3d86f440",
      "notes": "This onfleetTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "position": [
        680,
        300
      ],
      "parameters": {
        "text": "A new driver has signed up!",
        "channel": "#new-driver-signup",
        "attachments": [],
        "otherOptions": {},
        "_injected_number_field": "not_a_number"
      },
      "credentials": {
        "slackApi": {
          "id": "{{ $credentials.slackApi.id }}",
          "name": "Slack account"
        }
      },
      "typeVersion": 1,
      "id": "3ff77f05-1b70-43d0-96bd-ea3900a38053",
      "notes": "This slack node performs automated tasks as part of the workflow."
    },
    {
      "id": "error-932f4064",
      "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
  },
  "connect...

Output:
The node 'Slack' 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.


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": "1a461b8a-090e-4dc4-a3d7-bf976a49828e",
      "name": "Slack",
      "type": "n8n-nodes-base.slack",
      "position": [
        1660,
        200
      ],
      "parameters": {
        "text": "=\u2b50 Got a hot lead for you  {{ $json.properties.first_name }} {{ $json.properties.last_name }} from  {{ $json.company.properties.name }} ({{ $json.company.properties.domain }}) based out of {{ $json.company.properties.location.state }}, {{ $json.company.properties.location.country }}.\n\n\n{{ $('Score lead with MadKudu').item.json.properties.customer_fit.top_signals_formatted }}",
        "select": "channel",
        "channelId": {
          "__rl": true,
          "mode": "name",
          "value": "#interesting_leads"
        },
        "otherOptions": {}
      },
      "credentials": {
        "slackApi": {
          "id": "{{ $credentials.slackApi.id }}",
          "name": "Nathan Slack Bot token"
        }
      },
      "typeVersion": 2.1,
      "notes": "This slack node performs automated tasks as part of the workflow."
    },
    {
      "id": "bcd8e7dc-cb7f-4e2b-a0c6-2d154cb58938",
      "name": "n8n Form Trigger",
      "type": "n8n-nodes-base.formTrigger",
      "position": [
        380,
        420
      ],
      "webhookId": "0bf8840f-1cc4-46a9-86af-a3fa8da80608",
      "parameters": {
        "path": "0bf8840f-1cc4-46a9-86af-a3fa8da80608",
        "options": {},
        "formTitle": "Contact us",
        "formFields": {
          "values": [
            {
              "fieldLabel": "What's your business email?"
            }
          ]
        },
        "formDescription": "We'll get back to you soon"
      },
      "typeVersion": 2,
      "notes": "This formTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "c20c626f-fd58-497f-942f-5d10f198f36d",
      "name": "Check if the email is valid",
      "type": "n8n-nodes-base.if",
      "position": [
        800,
        420
      ],
     ...

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

Remove the trailing comma before the closing brace.


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: 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-e981e305",
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.326513",
    "updatedAt": "2025-09-29T07:07:52.326520",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "2ce91ec6-0a8c-438a-8a18-216001c9ee07",
      "name": "Sticky Note",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        380,
        240
      ],
      "parameters": {
        "width": 407.6388140161723,
        "height": 490.24769122000794,
        "content": "## This is a POST Webhook endpoint\n\nMake sure to configure this webhook using a https:// wraper and dont use the default {{ $env.WEBHOOK_URL }} as that will not be recognized by your slack webhook\n\n\nOnce the data has been sent to your webhook, the next step will be passing it via an AI Agent to process data based on the queries we pass to our agent.\n\nTo have some sort of a memory, be sure to set the slack token to the memory node. This way you can refer to other chats from the history.\n\nThe final message is relayed back to slack as a new message. Since we can not wait longer than 3000 ms for slack response, we will create anew message with reference to the input we passed.\n\nWe can advance this using the tools or data sources for it to be more custom tailored for your company.\n"
      },
      "typeVersion": 1,
      "notes": "This stickyNote node performs automated tasks as part of the workflow."
    },
    {
      "id": "7a0c84a8-90ef-4de8-b120-700c94c35a51",
      "name": "Sticky Note2",
      "type": "n8n-nodes-base.stickyNote",
      "position": [
        1180,
        560
      ],
      "parameters": {
        "color": 4,
        "width": 221.73584905660368,
        "height": 233,
        "content": "### Conversation history is stored in memory using the body token as the chatsession id"
      },
      "typeVersio...

Output:
The workflow has a broken data flow. The node 'cfcf2bbc-8ed5-4a9f-8f35-cf2715686ebe' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for 'cfcf2bbc-8ed5-4a9f-8f35-cf2715686ebe'.

**Impact**: Data from 'cfcf2bbc-8ed5-4a9f-8f35-cf2715686ebe' 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 'cfcf2bbc-8ed5-4a9f-8f35-cf2715686ebe' 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": {
  "cfcf2bbc-8ed5-4a9f-8f35-cf2715686ebe": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```

Reconnect 'cfcf2bbc-8ed5-4a9f-8f35-cf2715686ebe' to the workflow.


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

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

Workflow JSON:
{
  "meta": {
    "instanceId": "workflow-6eb09e27:
    "versionId": "1.0.0",
    "createdAt": "2025-09-29T07:07:52.325859",
    "updatedAt": "2025-09-29T07:07:52.325870",
    "owner": "n8n-user",
    "license": "MIT",
    "category": "automation",
    "status": "active",
    "priority": "high",
    "environment": "production"
  },
  "nodes": [
    {
      "id": "3af140c3-03eb-4eeb-ad31-71f94bc37790",
      "name": "Loop to next call",
      "type": "n8n-nodes-base.noOp",
      "position": [
        4820,
        120
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This noOp node performs automated tasks as part of the workflow."
    },
    {
      "id": "8904df21-c993-4c3d-84e6-4418990cb52f",
      "name": "Execute Workflow Trigger",
      "type": "n8n-nodes-base.executeWorkflowTrigger",
      "position": [
        700,
        -40
      ],
      "parameters": {},
      "typeVersion": 1,
      "notes": "This executeWorkflowTrigger node performs automated tasks as part of the workflow."
    },
    {
      "id": "d85f05bd-c680-4b41-b67a-8126b3ed29b0",
      "name": "Create Notion DB Page",
      "type": "n8n-nodes-base.notion",
      "position": [
        3240,
        60
      ],
      "parameters": {
        "title": "={{ $json.metaData.title }}",
        "options": {
          "icon": "\ud83d\udcde"
        },
        "resource": "databasePage",
        "databaseId": {
          "__rl": true,
          "mode": "list",
          "value": "1a85b6e0-c94f-81a3-aa21-e3ccf8296d72",
          "cachedResultUrl": "{{ $env.WEBHOOK_URL }}",
          "cachedResultName": "Sales Call Summaries Demo"
        },
        "propertiesUi": {
          "propertyValues": [
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "date": "={{ $json.metaData.started }}"
            },
            {
              "key": "YOUR_CREDENTIAL_HERE",
              "urlValue": "{{ $env.BASE_URL }}"
            },
            {
              "key": "YOUR_CR...

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


Instruction:
Debug this n8n workflow. It has the following issue:
Error Type: 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": 3,
  "name": "Orlen",
  "nodes": [
    {
      "name": "On clicking 'execute'",
      "type": "n8n-nodes-base.manualTrigger",
      "position": [
        240,
        300
      ],
      "parameters": {},
      "typeVersion": 1,
      "id": "f43f0530-7091-4a88-9333-507ff8c16ec4",
      "notes": "This manualTrigger node performs automated tasks as part of the workflow."
    },
    {
      "name": "Current date",
      "type": "n8n-nodes-base.function",
      "position": [
        1160,
        960
      ],
      "parameters": {
        "functionCode": "var today = new Date();\nvar year = today.getFullYear();\nvar month = today.getMonth() + 1;\nvar day = today.getDate();\n\nif(month < 10) {\n  month = \"0\" + month;\n}\n\nitems[0].json.year = year;\nitems[0].json.month = month;\nitems[0].json.day = day;\n\nreturn items;"
      },
      "typeVersion": 1,
      "id": "1bb0161e-1a38-4533-909c-a9e9425d7536",
      "notes": "This function node performs automated tasks as part of the workflow."
    },
    {
      "name": "Every 23:45",
      "type": "n8n-nodes-base.cron",
      "position": [
        960,
        960
      ],
      "parameters": {
        "triggerTimes": {
          "item": [
            {
              "hour": 23,
              "minute": 45
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "78cd2038-7309-4626-84d2-53a69468661b",
      "notes": "This cron node performs automated tasks as part of the workflow."
    },
    {
      "name": "Get Year folder",
      "type": "n8n-nodes-base.googleDrive",
      "position": [
        1360,
        960
      ],
      "parameters": {
        "options": {
          "fields": [
            "id"
          ]
        },
        "operation": "list",
        "queryFilters": {
          "name": [
            {
              "value": "={{$json[\"year\"]}}",
              "operation": "is"
            }
          ],
          "mimeType": [
            {
              "mimeType": "applicat...

Output:
The node 'Get Year folder' (type: n8n-nodes-base.googleDrive) 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": {
  "googleDriveOAuth2Api": {
    "id": "{{ $credentials.googleDriveOAuth2Api.id }}",
    "name": "Google Drive 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 'Get Year folder' 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": "5"
  "name": "Slack-GitHub User Info",
  "nodes": [
    {
      "name": "Webhook",
      "type": "n8n-nodes-base.webhook",
      "position": [
        300,
        300
      ],
      "webhookId": "dacd64a7-a83e-4492-b8fe-363453906d0d",
      "parameters": {
        "path": "dacd64a7-a83e-4492-b8fe-363453906d0d",
        "options": {},
        "httpMethod": "POST"
      },
      "typeVersion": 1,
      "id": "node-b9332f71"
    },
    {
      "name": "GraphQL",
      "type": "n8n-nodes-base.graphql",
      "position": [
        500,
        300
      ],
      "parameters": {
        "query": "=query {\nuser(login:\"{{$node[\"Webhook\"].json[\"body\"][\"text\"]}}\"){\nname\ncompany\nlocation\navatarUrl\nemail\npullRequests(last: 25) {\nedges {\nnode {\ncommits(last:25) {\nnodes {\ncommit {\nauthor {\nemail\nname\n}\n}\n}\n}\n}\n}\n}\n}\n}",
        "endpoint": "{{ $env.API_ENDPOINT }}",
        "requestFormat": "json",
        "responseFormat": "string",
        "headerParametersUi": {
          "parameter": [
            {
              "name": "User-Agent",
              "value": "n8n"
            },
            {
              "name": "Authorization",
              "value": "bearer <Personal Token>"
            }
          ]
        }
      },
      "typeVersion": 1,
      "id": "node-8a2ae4e6"
    },
    {
      "name": "Function",
      "type": "n8n-nodes-base.function",
      "position": [
        700,
        300
      ],
      "parameters": {
        "functionCode": "let emails = [];\nlet tempEmails = [];\nconst name = $node[\"GraphQL\"].json[\"data\"][\"data\"][\"user\"][\"name\"];\nconst publicEmail = $node[\"GraphQL\"].json[\"data\"][\"data\"][\"user\"][\"email\"];\nconst username = $node[\"Webhook\"].json[\"body\"][\"text\"];\nconst nameRegex = new RegExp(name,\"g\")\n\nif(publicEmail){\n// if public email address exists, push it to the tempEmails array\n  tempEmails.push(publicEmail)\n}\n\n// looping through the pull requests\nfor(const edge of...

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: 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": "trigger-43a50227",
      "name": "Manual Trigger",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {}
    },
    {
      "name": "Read Harvey's Email",
      "type": "n8n-nodes-base.emailReadImap",
      "position": [
        270,
        390
      ],
      "parameters": {
        "options": {}
      },
      "credentials": {
        "imap": "Read Harvey's Mail"
      },
      "typeVersion": 1,
      "id": "200e7ae0-4868-4302-b92d-04e196f1290d",
      "notes": "This emailReadImap node performs automated tasks as part of the workflow."
    },
    {
      "name": "Who Is The Email From?",
      "type": "n8n-nodes-base.switch",
      "position": [
        460,
        390
      ],
      "parameters": {
        "rules": {
          "rules": [
            {
              "value2": "Louis Litt <louis_litt_1970@yahoo.com>"
            }
          ]
        },
        "value1": "={{$node[\"Read Harvey's Email\"].json[\"from\"]}}",
        "dataType": "string",
        "fallbackOutput": 3
      },
      "typeVersion": 1,
      "alwaysOutputData": false,
      "id": "399d6dcd-65d2-479e-92de-c5d7455c4169",
      "notes": "This switch node performs automated tasks as part of the workflow."
    },
    {
      "name": "Read Excuses File",
      "type": "n8n-nodes-base.readBinaryFile",
      "position": [
        670,
        230
      ],
      "parameters": {
        "filePath": "/home/n8n/Excuse_Generator.xlsx"
      },
      "typeVersion": 1,
      "id": "640523db-96df-4613-91e9-f660b1b3b5e6",
      "notes": "This readBinaryFile node performs automated tasks as part of the workflow."
    },
    {
      "name": "Retrieve Excuses Spreadsheet Data",
      "type": "n8n-nodes-base.spreadsheetFile",
      "position": [
        860,
        230
      ],
      "parameters": {
        "options": {}
      },
      "typeVersion": 1,
      "id": "c77a42c7-378f-4...

Output:
The workflow has a broken data flow. The node '200e7ae0-4868-4302-b92d-04e196f1290d' is not connected to any subsequent nodes.

**Root Cause**: The connections object is missing the output connections for '200e7ae0-4868-4302-b92d-04e196f1290d'.

**Impact**: Data from '200e7ae0-4868-4302-b92d-04e196f1290d' 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 '200e7ae0-4868-4302-b92d-04e196f1290d' 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": {
  "200e7ae0-4868-4302-b92d-04e196f1290d": {
    "main": [[{"node": "NextNode", "type": "main", "index": 0}]]
  }
}
```


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": 88,
  "name": "Check for valid Hubspot contact email",
  "nodes": [
    {
      "name": "When contact created",
      "type": "n8n-nodes-base.hubspotTrigger",
      "position": [
        540,
        480
      ],
      "webhookId": "d24ffb14-1e00-4d4e-b3b8-a812690c40d5",
      "parameters": {
        "eventsUi": {
          "eventValues": [
            {}
          ]
        },
        "additionalFields": {}
      },
      "credentials": {
        "hubspotDeveloperApi": {
          "id": "{{ $credentials.hubspotDeveloperApi.id }}",
          "name": "Hubspot Developer account"
        }
      },
      "typeVersion": 1,
      "id": "node-542efb57"
    },
    {
      "name": "Get contact email address",
      "type": "n8n-nodes-base.hubspot",
      "position": [
        720,
        480
      ],
      "parameters": {
        "resource": "contact",
        "contactId": "={{ $node.NonExistentNode.json.data }}",
        "operation": "get",
        "additionalFields": {
          "properties": [
            "email"
          ],
          "propertyMode": "valueOnly"
        }
      },
      "credentials": {
        "hubspotApi": {
          "id": "{{ $credentials.hubspotApi.id }}",
          "name": "Hubspot account"
        }
      },
      "typeVersion": 1,
      "id": "node-f300abf3"
    },
    {
      "name": "validate the email",
      "type": "n8n-nodes-base.oneSimpleApi",
      "position": [
        900,
        480
      ],
      "parameters": {
        "resource": "utility",
        "emailAddress": "={{$json[\"properties\"][\"email\"][\"value\"]}}"
      },
      "credentials": {
        "oneSimpleApi": {
          "id": "{{ $credentials.oneSimpleApi.id }}",
          "name": "One Simple account"
        }
      },
      "typeVersion": 1,
      "id": "node-4081bbb3"
    },
    {
      "name": "If email is suspicious",
      "type": "n8n-nodes-base.if",
      "notes": "IF\ndeliverability is not good\nOR\nDomain is not valid\nOR\nEmail is Disposable",
    ...

Output:
In node 'Get contact email address', the parameter 'contactId' contains an expression that references undefined data.

**Faulty Expression**: `={{ $node.NonExistentNode.json.data }}`
**Original Value**: `={{$json["contactId"] ? 151 : 151}}`

**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 'Get contact email address' parameter 'contactId'.


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": 91,
  "name": "New invoice email notification",
  "nodes": [
    {
      "id": "trigger-f3c426cb",
      "name": "Manual Trigger",
      "type": "n8n-nodes-base.manualTrigger",
      "typeVersion": 1,
      "position": [
        100,
        100
      ],
      "parameters": {}
    },
    {
      "name": "Check for new emails",
      "type": "n8n-nodes-base.emailReadImap",
      "position": [
        500,
        300
      ],
      "parameters": {
        "format": "resolved",
        "mailbox": "Inbox",
        "options": {
          "allowUnauthorizedCerts": true
        }
      },
      "credentials": {
        "imap": {
          "id": "{{ $credentials.imap.id }}",
          "name": "GMAIL"
        }
      },
      "typeVersion": 1,
      "id": "dfb1296d-d8c8-4a41-99b2-d7bea36f97f1",
      "notes": "This emailReadImap node performs automated tasks as part of the workflow."
    },
    {
      "name": "If email body contains invoice",
      "type": "n8n-nodes-base.if",
      "position": [
        700,
        300
      ],
      "parameters": {
        "conditions": {
          "string": [
            {
              "value1": "={{$json[\"text\"].toLowerCase()}}",
              "value2": "invoice",
              "operation": "contains"
            }
          ]
        },
        "combineOperation": "={{ $json[\"non_existent_field\"] }}"
      },
      "typeVersion": 1,
      "id": "6fb96f70-a339-4d0e-b6a6-707c4f957874",
      "notes": "This if node performs automated tasks as part of the workflow."
    },
    {
      "name": "Extract the total amount",
      "type": "n8n-nodes-base.mindee",
      "position": [
        900,
        280
      ],
      "parameters": {
        "rawData": true,
        "resource": "invoice",
        "binaryPropertyName": "attachment_0"
      },
      "credentials": {
        "mindeeInvoiceApi": {
          "id": "{{ $credentials.mindeeInvoiceApi.id }}",
          "name": "Mindee Invoice account"
        }
      },
      "typeV...

Output:
In node 'If email body contains invoice', the parameter 'combineOperation' contains an expression that references undefined data.

**Faulty Expression**: `={{ $json["non_existent_field"] }}`
**Original Value**: `any`

**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 'If email body contains invoice' parameter 'combineOperation'.