When the VAPI assistant makes an outbound call to a dealership and the receptionist picks up with "Hi, thanks for calling Jackson Toyota, this is Joanne speaking", the VAPI assistant responds with "Hi, can you please connect me with metadata.firstname, metadatalast name please? Or it also responds with "Hi, can you please connect me with George Anderson?" - The VAPI Assistant made up the George name. George is not a contact on the Google Sheet and that name is nowhere in the System Prompt. I'm not technical at all and I have learned ways to "set things up" by myself. So please hold hands with me, hehe! But can you please let me know what I am doing wrong and why is the VAPI assistant not asking for the contact name from the Google Sheet? Here's my current process - Please see the attached Word document with the full process 1) n8n Workflow with HTTP Request node at the end sending info to VAPI. The expressions in the JSON Payload that the node sends are all green 2) VAPI Sytem Prompt - I include {{metadata.firstName}} {{metadata.lastName}} into the prompt when giving instructions to the assistant i.e. "When the receptionist picks up ask for {{metadata.firstName}} {{metadata.lastName}} " 3) I execute the workflow (I put my cell phone in the contact's PHONE NUMBER column of the Google Sheet) and the assistant calls me - so at least that part I go it right! Thanks for taking the time to look into my request and I hope that I can pinpoint the issue so that I get the assistant working correctly. Thanks! https://cdn.discordapp.com/attachments/1434191909517135872/1434191909722652826/Process.docx?ex=69076ecd&is=69061d4d&hm=a21e747fe42fb05522f6348e63d0edd044d6bbc178f2c032927b95f3c98667b3&

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Hey! 👋 It sounds like your assistant isn’t pulling the metadata correctly from n8n into VAPI. This usually happens when the JSON payload is sent as text instead of parsed data, or when the variable placeholders in the prompt aren’t being replaced during runtime. I can help you check the n8n execution logs to confirm if metadata.firstName and metadata.lastName are reaching VAPI, then adjust the payload and system prompt accordingly. Also, have you checked if those metadata values appear in the VAPI call logs? @Charlie

Hi @Vercel It looks like I got it fixed! When the assistant calls a contact from the Google sheet i.e. Justin, it now actually asks for "Justin". I needed to revise the payload that the HTTP Request node sends to VAPi. Here's the revised payload: { "assistantId": "6280b84f-1c70-4a53-ade4-5ec401faf520", "phoneNumberId": "e479ed0b-d385-4c28-8c89-af193be6e761", "customer": { "number": "{{ $('If').first().json['CLEAN PHONE'].trim() }}", "name": "{{ $('If').first().json['FIRST NAME'] }} {{ $('If').first().json['LAST NAME'] }}" }, "metadata": { "dealership": "{{ $('If').first().json.DEALERSHIP }}", "firstName": "{{ $('If').first().json['FIRST NAME'] }}", "lastName": "{{ $('If').first().json['LAST NAME'] }}", "prospectId": "{{ $('If').first().json['PROSPECT ID'] }}", "extension": "{{ $('If').first().json.EXTENSION || '' }}", "email": "{{ $('If').first().json.EMAIL || '' }}" }, "assistantOverrides": { "variableValues": { "firstName": "{{ $('If').first().json['FIRST NAME'] }}", "lastName": "{{ $('If').first().json['LAST NAME'] }}", "prospectId": "{{ $('If').first().json['PROSPECT ID'] }}", "email": "{{ $('If').first().json.EMAIL || '' }}", "extension": "{{ $('If').first().json.EXTENSION || '' }}" } } } The trick was adding the assisantOverrides block to the JSON payload!!

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