Call ID: 514bc998-1101-42af-a3c5-3fc38021316e { "results": [ { "toolCallId": "X", "result": "Y" } ] } Sending results in this format yet in the call getting a "No result returned"

Hi there! I see you're having trouble with tool call results in Vapi. Looking at your JSON format, I notice you're using placeholder values "X" and "Y" - this might be the issue! The JSON structure is correct, but you need to use the actual toolCallId from the original request, not literally "X". Here's what might be happening: 1. **Placeholder Values**: The

toolCallId

should match the ID received in the original tool call request from Vapi (like "call_lHZzsNi9vjMGtIdVZ8KUIIa2"), and the

result

should contain your actual response data. 2. **Result Formatting**: Ensure your

result

is a single line string without any line breaks, as these can cause parsing issues. 3. **Synchronous Tool Calls**: Vapi might be treating the call as failed without waiting for the complete timeout period, especially if your tool is set to synchronous. 4. **Network/Server Issues**: Check that your server is properly responding with a 200 status code. Here's an example of a correctly formatted response:

json
{
"results": [
  {
    "toolCallId": "call_lHZzsNi9vjMGtIdVZ8KUIIa2",
    "result": "The following timeslots are available: 2025-01-14T15:30:00-05:00, 2025-01-14T17:00:00-05:00"
  }
]
}

Let me know if replacing the placeholders resolves your issue! 🛠️ Sources: - [Common reasons for "No result returned" message](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1342336047589359618) - [Correct JSON format for tool call results](https://docs.vapi.ai/tools-calling) - [Vapi tool call response handling](https://discord.com/channels/1211482211119796234/1211483291191083018/threads/1342176467714572400)

@Mason please see this sir

Hey! To help track down this issue, could you share: - The call ID - When exactly this happened (the timestamp) - What response you expected to get - What response you actually got instead This would really help us figure out what went wrong!

I already provided the call id. And its simple during a tool call the results that we passed back in the "result" part of the json as a string aren't being shown in the call logs instead its "No result returned" this was only happening witjh openai models

Hello Hugo, we aren't getting anything back directly from your tool call to the KB: }, "toolCallResult": { "name": "knowledge_base_liv", "toolCallId": "call_ZfKyogbjtPbMxOZ7c6rybZBH", "error": "No result returned." } Could you please switch the model to a non openAI model and provide me a call ID of it working? When you send the tool call please keep an eye on your server logs and let me know if anything pops out.