#function calls not reaching external server
# supportr
rogan
06/02/2025, 9:17 PMThe assistant acknowledges trying to do lookups
No webhook requests are reaching server
Multiple assistants show the same pattern
The webhook endpoint works when tested directly
This suggests either account permissions or a service-level issue preventing external function calls from being executed.
rogan
06/02/2025, 9:51 PM"toolCalls": [
{
"id": "call_Q5hGuOxeo6q5VdU3SNHDzVQM",
"type": "function",
"function": {
"name": "lookup-contact",
"arguments": "{\"firstName\": \"Sally\", \"LastName\": \"Seashell\"}"
}
}
],
"role": "tool_calls",
"message": "",
"time": 1748900750795,
"secondsFromStart": 27.377
},
{
"role": "tool_call_result",
"time": 1748900751660,
"secondsFromStart": 28.242,
"name": "lookup-contact",
"result": "No result returned.",
"toolCallId": "call_Q5hGuOxeo6q5VdU3SNHDzVQM"
},
rogan
06/02/2025, 10:10 PMtool-calls events are not reaching the webhook endpoint even though the assistant behavior suggests it's attempting to execute them.
k
Kings_big💫
06/03/2025, 7:25 AMMake sure your webhook authentication tokens, headers, or OAuth2 is correctly configured at the assistant or org level, verify your tool’s parameters and response format match Vapi’s requirements, check webhook logs in the Vapi dashboard for delivery errors; test your tool directly via Vapi’s test feature..
p
pyderator
06/04/2025, 12:50 PMHey @Kings_big💫, I am facing the same issue
The endpoint I am trying to call is already public and works while using the "Test" button
s
Shubham Bajaj
06/05/2025, 9:12 PMCould you share more details about your setup and what you would like the desired result to be? Please also elaborate on how the external functions are set up