Workflow not running anymore

Questions
6

@Thomas_Cornu
Here are additional possible causes:

  • Some users discovered that enabling filters like “Only unread emails” prevents triggering even when new emails arrive; turning that filter off made the trigger work again. (n8n Community)

  • Gmail triggers can be rate-limited by Google if you poll too often; after a while the trigger may stop working until credentials are re-authenticated or polling frequency relaxed. (n8n Community)

  • Expired or invalid Gmail credentials / OAuth token frequently appear as the culprit. Even if manual execution works, automatic polling may fail if the token has lost permissions or access was revoked. (n8n Community)

  • There is an open issue about Gmail polling triggers not working automatically after a while, even though the workflow is active. (GitHub)

What you can try:

  1. Re-authenticate Gmail credentials

  2. Increase polling interval

  3. Check logs/debug mode

  4. Ensure Gmail API, scopes, OAuth settings are still valid

  5. Check that workflow is really Active in Executions tab

Lmk

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