How can I fix my WhatsApp trigger stuck on 'waiting for trigger event'?

Based on the documentation, this behavior can occur if you’re switching between using the testing webhook URL and the production webhook URL. WhatsApp only allows a single registered webhook per app, so if you test a workflow that's active in production the webhook URL may be overwritten. As a result, the trigger appears stuck waiting (or doesn't stop listening for events).

Here’s how you can resolve the issue:

1. Disable your production workflow:
   Temporarily disable your workflow by toggling the Active switch off. This ensures that only your test URL is registered.

2. Test using the test webhook URL:
   Run your tests using the test webhook URL. This prevents conflicts between production and test registrations.

3. Re-enable production after testing:
   Once you’re done testing, re-enable your production workflow and toggle back to the production webhook URL. Your production traffic should resume normally.

If the workflow remains stuck even after these steps, try closing and reopening your workflow to reset the canvas. Also, if you continue to experience issues, consider checking your WhatsApp credentials and webhook configuration settings to verify that everything is set up properly.

For additional guidance, you can review the troubleshooting steps outlined in the WhatsApp Trigger node documentation.