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Question

Custom app trigger returns data in test but doesn't trigger Zap

  • June 16, 2026
  • 1 reply
  • 24 views

I have a custom app built on the Zapier Developer Platform. The trigger was working correctly and successfully triggering Zaps until June 12, but since then no new tasks have been triggered.

I've tested the trigger in the Developer Platform, and it returns data successfully without any errors. However, the live Zap is not triggering.

Has anyone experienced something similar or can suggest what might be causing this issue? Are there any common reasons why a trigger would stop firing even though the trigger test is still working?

1 reply

Troy Tessalone
Zapier Orchestrator & Solution Partner
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  • Zapier Orchestrator & Solution Partner
  • June 17, 2026

Hi ​@automation_journey 

Search the Zapier Developer Platform help center: https://docs.zapier.com/integrations/quickstart/get-help

See section related to Troubleshooting: https://docs.zapier.com/integrations/build/troubleshoot-trigger-timeouts