Automations doesn't work with Slack

[nikolay_pikalov]

Made a simple automation to send notifications to Slack when task is overdue. But it doesn't work.

Automation log: "An error occurred while trying to post the message: Invalid token."

Slack-Trello integration works (I can send message or create card from message).

Revoked and renewed Slack token. Linked it again.

I also revoked Butler token. It didn't appear again.

[nikolay_pikalov · Accepted solution]

Solution:
revoke all app keys in trello settings (Butler and Slack)

revoke Trello and Butler from Slack

Unlink Trello from Slack

Trello: Automations -- View Apps -- Disconnect Slack Workspace

Check Trello settings for new app keys -- revoke if exists

Connect Slack again

It was not obvious

[nikolay_pikalov]

update: Butler app key appeared but error is same