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Trello-Slack Integration Error

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October 24, 2025

Hi everyone,

I’m encountering an issue with the Trello-Slack integration and would appreciate your help. Below are the details:

Error message and ID:

Uh oh! There was an error adding Trello to Slack.

Please try again in Trello.

ID: 81a7d066-258d-4f74-87be-99fd1420e525

Steps taken so far:

I already revoked and relinked Slack account, refreshed Trello page, cleared browser cache.

Note: I have the free trello version

Thanks in advance for your help!

Dani

1 answer

0 votes
Sakshi Verma
Atlassian Team
Atlassian Team members are employees working across the company in a wide variety of roles.
October 27, 2025

Hi Dani ,Welcome to community !

Thank you for letting me know about the issue you're experiencing while integrating Trello with Slack. I see that you've already tried revoking and relinking your account.

I've run several tests on my end, and the Slack integration appears to be working fine here. To help resolve the issue, could you please try the following steps to fully disable and then re-enable the Slack Power-Up?

Steps to reset the Trello-Slack integration:

  1. Go to the board where the Slack Power-Up is enabled.

  2. Open the Board Menu and select the Slack Power-Up.

  3. Choose Remove personal settings and then Disable the Power-Up.

  4. Visit https://trello.com/my/account.

  5. Under the Applications section, select Revoke for any Slack entries you find.

  6. In your Slack workspace, go to a relevant channel and type:

    • /trello unlink

    • /trello reset

    • Then, reauthorize your account as prompted.

  7. Return to Trello, reenable the Slack Power-Up, and follow the authorization flow.

Could you please let me know if this helps or if you encounter any issues during the process?


Thank you !

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