To handle Make.com 429 rate limits, add an exponential backoff plan to your Vapi tool configuration. This will automatically retry the webhook call if a rate limit error occurs:

json
{
  "type": "apiRequest",
  "name": "yourToolName",
  "url": "https://hook.make.com/your-endpoint",
  "method": "POST",
  "backoffPlan": {
    "type": "exponential",
    "maxRetries": 3,
    "baseDelaySeconds": 2,
    "excludeStatusCodes": []
  }
}

This setup will retry failed requests up to 3 times with increasing delays, helping to avoid "no result returned" errors due to rate limiting. Sources: - [Enhanced Tool Retry Logic with Backoff Plans](https://docs.vapi.ai/changelog/2025/8/27) - [Default Tools API Request Backoff Example](https://docs.vapi.ai/tools/default-tools)

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!