Hi Vapi team! I’m dispatching calls via n8n to your POST /call endpoint using a JSON body that includes assistantId, phoneNumberId, customer.number, a metadata object (with fields like member_name, member_number, etc.), and a webhookUrl pointed at my /ivr-feedback webhook. However, although the webhook fires, the callback payload never contains my metadata fields, and I’m seeing [ERROR] status-update … 410 Gone and [ERROR] end-of-call-report … 410 Gone in the Vapi logs. Can you confirm the exact JSON structure, required headers (Content-Type, Authorization) and webhookUrl format I should be using to ensure: 1. All metadata fields are delivered intact in the callback 2. The status-update and end-of-call-report callbacks succeed (no 410 errors) Thanks!

Send a POST to

/call

with

assistantId

,

phoneNumberId

,

customer.number

,

metadata

flat key-value pairs, and a valid `webhookUrl`; include headers

Content-Type: application/json

and `Authorization: Bearer YOUR_API_KEY`; and make sure your webhook endpoint responds quickly with HTTP 200 to every callback..