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πŸ”΄ Workflow Error

The LinkedIn PDF β†’ JobAdder Sync workflow encountered an error:

{{ $json.execution.error.message }}

Last node: {{ $json.execution.lastNodeExecuted }}

Check your n8n execution log for full details.","options":{},"subject":"=πŸ”΄ Workflow Error: LinkedIn PDF β†’ JobAdder Sync"},"credentials":{"gmailOAuth2":{"id":"nyuHvSX5HuqfMPlW","name":"Gmail account (n3w.it)"}},"typeVersion":2.1},{"id":"87cc75dc-c025-42e8-bb43-7257a7542054","name":"Virtual Assistant","type":"@n8n/n8n-nodes-langchain.agent","position":[272,432],"parameters":{"text":"={{ $json.guardrailsInput }}","options":{"systemMessage":"=# OVERVIEW\nYou are Emma from \"Cuts & Styles\", a virtual assistant. Your priority is to call the correct tools in the right order.\n\n# TOOLS\n- New client - Use this tool to check if the client exists in the system\n- Add client - Use this tool to add the client details to the system\n- Get events - Use this tool to search for events or available slots in the calendar\n- Create event - Use this tool to create a new event (check chat_history for user's details)\n- Update event - Use this tool if there's an existing event that needs to be rescheduled\n- Delete event - Use this tool if there's an existing event that needs to be cancelled/deleted\n- Escalation - Use this tool if the user is requesting anything else other than booking, rescheduling, or cancelling an appointment.\n\n# TASKS:\n1- Identify the user (mandatory every time)\n2- Check for existing appointments\n3- Book, reschedule, or delete appointments\n\n# INSTRUCTIONS FOR EACH TASK\n\n## IDENTIFY USER\n1. **ALWAYS** call `New client?` first to identify the user\n - If the user doesn't exist yet, ask for their full name and hair type/preferences, then call `Add client`. Check chat_history if the user has already provided any of those details before asking.\n - If the user exists, continue to step 2 (Check for existing appointments)\n\n## BOOKING INSTRUCTIONS:\n- **Always** call `Get events` before replying. Send the first 2 or 3 **available** slots to the user.\n- If the user is unavailable on those slot suggestions, provide 2-3 more available slots.\n- Once the user agrees to a specific slot, call `Create event`.\n- Confirm the date/time to the user.\n\n## RESCHEDULE INSTRUCTIONS:\n- Call `Get events` and search the appointment titles until you find the user's existing booking (using the user's full name). **NEVER** skip this step. If the user is rescheduling, you **must** find their existing appointment. 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}}"},{"id":"3014000a-962e-449c-93a9-99fe74a1a21e","name":"type","type":"string","value":"chat"}]}},"typeVersion":3.4},{"id":"24f137f3-973b-4be8-a811-ab889f516c55","name":"Switch","type":"n8n-nodes-base.switch","position":[1872,432],"parameters":{"rules":{"values":[{"outputKey":"WhatsApp","conditions":{"options":{"version":3,"leftValue":"","caseSensitive":true,"typeValidation":"strict"},"combinator":"and","conditions":[{"id":"05f0da8d-ac5d-4bea-b691-9f2468efa664","operator":{"type":"string","operation":"equals"},"leftValue":"={{ $('Normalize').item.json.type }}","rightValue":"whatsapp"}]},"renameOutput":true},{"outputKey":"Chat","conditions":{"options":{"version":3,"leftValue":"","caseSensitive":true,"typeValidation":"strict"},"combinator":"and","conditions":[{"id":"93f83728-df15-4304-9b95-3ca321cb1abb","operator":{"type":"string","operation":"equals"},"leftValue":"={{ $('Normalize').item.json.type 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}}","approvalOptions":{"values":{"approvalType":"double"}}},"typeVersion":1.2},{"id":"c474e2dd-44c7-477d-8b66-24d196723a4d","name":"Chat","type":"@n8n/n8n-nodes-langchain.chat","position":[2272,640],"webhookId":"83a401e2-d083-4264-95ab-e960020f28cc","parameters":{"message":"={{$json.output}}","options":{}},"typeVersion":1.2},{"id":"77313555-74a2-452e-86a5-8580627314dd","name":"Chat1","type":"@n8n/n8n-nodes-langchain.chat","position":[-176,944],"webhookId":"83a401e2-d083-4264-95ab-e960020f28cc","parameters":{"message":"=What was communicated does not reflect our policies or is not relevant.","options":{}},"typeVersion":1.2},{"id":"ba8be3a0-deb5-4452-9c04-5cabbdcaacc2","name":"Message","type":"n8n-nodes-base.set","position":[-1056,800],"parameters":{"options":{},"assignments":{"assignments":[{"id":"c53cd9f9-77c1-4331-98ff-bfc9bdf95a3c","name":"message","type":"string","value":"={{ $('WhatsApp Trigger').item.json.messages[0].text.body }}"},{"id":"87dbdb41-66ba-4c02-a441-a6b44777dcbd","name":"sessionId","type":"string","value":"={{ $('WhatsApp Trigger').item.json.messages[0].from }}"},{"id":"6e097caf-b3d4-4a17-8f63-57aa735e12ac","name":"type","type":"string","value":"whatsapp"}]}},"typeVersion":3.4},{"id":"47783407-0d84-4172-9e19-589f3b1e9a61","name":"From Chat","type":"n8n-nodes-base.set","position":[-1056,480],"parameters":{"options":{},"assignments":{"assignments":[{"id":"c53cd9f9-77c1-4331-98ff-bfc9bdf95a3c","name":"message","type":"string","value":"={{ $json.chatInput }}"},{"id":"e355708a-2353-46c9-9423-9e15ea731955","name":"sessionId","type":"string","value":"={{ $json.sessionId }}"}]}},"typeVersion":3.4},{"id":"f7e49b4c-5e99-424c-8429-7904e1c0520f","name":"Sticky Note1","type":"n8n-nodes-base.stickyNote","position":[-2256,320],"parameters":{"color":7,"width":1392,"height":368,"content":"## STEP 1 - Chat Input\nMessage from chatbot"},"typeVersion":1},{"id":"ec999d01-a788-43f5-92c1-58414b37697b","name":"Sticky Note2","type":"n8n-nodes-base.stickyNote","position":[-2256,720],"parameters":{"color":7,"width":1392,"height":656,"content":"## STEP 1 bis - WhatsApp Input\nMessage (text or audio with speech to text) from WhatsApp"},"typeVersion":1},{"id":"44f25d5d-3373-4007-b6e3-78c8c00f565c","name":"Sticky Note3","type":"n8n-nodes-base.stickyNote","position":[-832,320],"parameters":{"color":7,"width":880,"height":1056,"content":"## STEP 2 - Guardrails\n"},"typeVersion":1},{"id":"0c46b4c3-a6b6-4127-8163-3b8fec3d6bc1","name":"Sticky Note4","type":"n8n-nodes-base.stickyNote","position":[96,320],"parameters":{"color":7,"width":944,"height":1056,"content":"## STEP 3 - AI Agent\n[Clone this sheet](https://docs.google.com/spreadsheets/d/1DM24yhANppmCu92D3St6GpMh2He7L2feizajN0aLDrU/edit?usp=sharing) for example of simple database"},"typeVersion":1},{"id":"d59bae7b-3ead-4218-808b-c20ae85cb857","name":"Sticky Note5","type":"n8n-nodes-base.stickyNote","position":[1072,784],"parameters":{"color":7,"width":592,"height":592,"content":"## STEP 3 bis - Escalation\nEscalation with Chatbot or WhatsApp (select one)"},"typeVersion":1},{"id":"a4e9a4c5-197c-4162-a3c4-af42e5fbadac","name":"Sticky Note6","type":"n8n-nodes-base.stickyNote","position":[2144,-16],"parameters":{"color":7,"width":1264,"height":496,"content":"## STEP 4 - WhatsApp Response"},"typeVersion":1},{"id":"5ec9105b-012c-4dfa-a04c-7296691f97ec","name":"Sticky Note7","type":"n8n-nodes-base.stickyNote","position":[2144,512],"parameters":{"color":7,"width":1264,"height":336,"content":"## STEP 4 bis - Chatbot Response\n"},"typeVersion":1},{"id":"d096f221-ab1c-41bb-b287-4d192eb77d7b","name":"Sticky Note8","type":"n8n-nodes-base.stickyNote","position":[-2256,-656],"parameters":{"width":1392,"height":560,"content":"## AI-Powered WhatsApp Chatbot\nThis workflow implements an **AI-powered WhatsApp booking assistant** for a hair salon. The system allows customers to **book, reschedule, or cancel appointments automatically via text or voice messages on WhatsApp**.\n\nThe workflow supports **both text and voice messages**. \n\n### How it works\n\nThis workflow acts as an **AI-powered WhatsApp booking assistant** that processes both **text and voice messages**. Incoming messages from WhatsApp or a chat interface are captured, and voice notes are automatically downloaded and transcribed using **OpenAI Whisper**. The message then passes through a **Guardrails layer (Google Gemini)** that filters unsafe or policy-violating inputs before reaching the AI agent.\n\nThe **AI Agent (β€œEmma”)** interprets the user’s intent and decides which tools to call. It checks or creates clients in **Google Sheets**, manages appointments in **Google Calendar** (check availability, create, update, cancel), and escalates unsupported requests via **Gmail or human-in-the-loop channels**. Conversation history is stored in **PostgreSQL** for context. Responses are sent back through WhatsApp as **text or synthesized voice (TTS)** depending on the original message type.\n\n### Setup steps\n\nTo deploy the workflow, configure integrations and update key resources used by the automation. First, connect required **credentials** including Google Calendar, Google Sheets, Gmail, WhatsApp Business API, OpenAI/OpenRouter for transcription and TTS, Google Gemini for AI processing and guardrails, and a **Postgres database** for conversation memory.\n\nNext, prepare **Google Sheets** as a lightweight CRM by creating a sheet with columns such as *Phone Number*, *Client*, and *Service*, then insert its **Document ID** in the relevant nodes. Verify the correct **Google Calendar ID** for appointment management. Configure the **WhatsApp Trigger and messaging nodes** with your Phone Number ID, update the escalation **email recipient**, and review the **AI prompts** to customize salon details, assistant behavior, and guardrail thresholds before activating the workflow.\n"},"typeVersion":1},{"id":"d8b42d4f-0e37-4b7d-98e1-87af9d4a4be1","name":"Sticky Note9","type":"n8n-nodes-base.stickyNote","position":[-2256,-48],"parameters":{"color":7,"width":1392,"height":336,"content":"## STEP 5 - Error"},"typeVersion":1},{"id":"fabd4439-a9b1-4d7c-9242-30486c2c1363","name":"Sticky Note","type":"n8n-nodes-base.stickyNote","position":[-816,-656],"parameters":{"color":7,"width":736,"height":736,"content":"## MY NEW YOUTUBE CHANNEL\nπŸ‘‰ [Subscribe to my new **YouTube channel**](https://youtube.com/@n3witalia). Here I’ll share videos and Shorts with practical tutorials and **FREE templates for n8n**.\n\n[![image](https://n3wstorage.b-cdn.net/n3witalia/youtube-n8n-cover.jpg)](https://youtube.com/@n3witalia)"},"typeVersion":1}],"active":false,"pinData":{},"settings":{"binaryMode":"separate","availableInMCP":false,"executionOrder":"v1"},"versionId":"30e3114d-dee1-43cb-bf17-5c20f8d09a5a","connections":{"Audio":{"main":[[{"node":"Normalize","type":"main","index":0}]]},"Switch":{"main":[[{"node":"From audio to audio?","type":"main","index":0}],[{"node":"Chat","type":"main","index":0}]]},"Message":{"main":[[{"node":"Normalize","type":"main","index":0}]]},"From Chat":{"main":[[{"node":"Normalize","type":"main","index":0}]]},"Normalize":{"main":[[{"node":"Guardrails","type":"main","index":0}]]},"Add client":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Calculator":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Escalation":{"ai_tool":[[]]},"Get events":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Guardrails":{"main":[[{"node":"Virtual Assistant","type":"main","index":0}],[{"node":"Chat1","type":"main","index":0}]]},"Input type":{"main":[[{"node":"Message","type":"main","index":0}],[{"node":"Get Audio Url","type":"main","index":0}],[{"node":"Not supported","type":"main","index":0}]]},"New client":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Send Email":{"ai_tool":[[{"node":"Escalation","type":"ai_tool","index":0},{"node":"Escalation1","type":"ai_tool","index":0}]]},"Escalation1":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Create event":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Delete event":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Update event":{"ai_tool":[[{"node":"Virtual Assistant","type":"ai_tool","index":0}]]},"Get Audio Url":{"main":[[{"node":"Download Audio","type":"main","index":0}]]},"Download Audio":{"main":[[{"node":"Transcribe Audio","type":"main","index":0}]]},"Transcribe Audio":{"main":[[{"node":"Audio","type":"main","index":0}]]},"WhatsApp Trigger":{"main":[[{"node":"Input type","type":"main","index":0}]]},"Virtual Assistant":{"main":[[{"node":"Switch","type":"main","index":0}]]},"From audio to audio?":{"main":[[{"node":"Generate Audio Response","type":"main","index":0}],[{"node":"Send message","type":"main","index":0}]]},"Postgres Chat Memory":{"ai_memory":[[{"node":"Virtual Assistant","type":"ai_memory","index":0}]]},"Fix mimeType for Audio":{"main":[[{"node":"Send audio","type":"main","index":0}]]},"Workflow Error Handler":{"main":[[{"node":"Notify: Workflow Error","type":"main","index":0}]]},"Generate Audio Response":{"main":[[{"node":"Fix mimeType for Audio","type":"main","index":0}]]},"Google Gemini Chat Model":{"ai_languageModel":[[{"node":"Virtual Assistant","type":"ai_languageModel","index":0}]]},"Google Gemini Chat Model1":{"ai_languageModel":[[{"node":"Guardrails","type":"ai_languageModel","index":0}]]},"When chat message received":{"main":[[{"node":"From Chat","type":"main","index":0}]]}}} \ No newline at end of file