[400] Bad Request Error
# support
v
A 400 Bad Request error usually means a required field is missing or incorrectly formatted in your Vapi API call. Please double-check that you are providing all required fields (
assistantId
,
phoneNumberId
, and
customer
in E.164 format) in your Make scenario. Could you share the exact data or payload being sent to Vapi from your Make scenario (or a screenshot of your configuration)? This will help identify the specific issue. Sources: - [Vapi Outbound Calling Documentation](https://docs.vapi.ai/calls/outbound-calling) - [Vapi API Reference – Create Phone Call](https://docs.vapi.ai/api-reference/calls/create-phone-call)
c
Can you share the exact payload that you are sending?
c
I'm very new to automation/coding, can you explain how I can share it?
c
Feel free to book a call with the team
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