Dash0 Raises $110M Series B at $1B Valuation

Last updated: July 5, 2026

Troubleshoot Slack Integration

Solutions to common Slack integration issues.

Solutions to common issues when using Slack with Agent0 automations.

Automation Doesn't Trigger from Slack

Symptoms:

  • You post a message matching the keyword.
  • The automation doesn't run.

Common causes:

  • The Dash0 bot isn't in the channel.
  • The automation is disabled.
  • The keyword match is incorrect.

Fix:

  1. Verify the bot is in the channel: check the member list or type @dash0.
  2. If not, invite the bot: /invite @dash0.
  3. Ensure the automation is Enabled in the automation editor.
  4. Check the Message Keyword field for typos or case issues (match is case-insensitive).
  5. Review the automation's run history for errors.

See Automation Doesn't Trigger for detailed troubleshooting.

Slack Tools Fail with Authentication Errors

Symptoms:

  • The automation triggers successfully.
  • slackSendMessage or other Slack tools fail with "authentication error" or "invalid token".

Common causes:

  • The Slack bot token was revoked (e.g., the app was removed from your workspace).
  • The integration was disconnected.

Fix:

  1. Go to Settings → Integrations in Dash0.
  2. Check if Slack shows as Connected.
  3. If not, click Connect and reauthenticate.
  4. If it shows as connected, try disconnecting and reconnecting to refresh the token.

Messages Post to Wrong Channel

Symptoms:

  • Agent0 posts messages to a different channel than expected.

Common causes:

  • The prompt doesn't specify which channel to use.
  • Agent0 is choosing a channel based on context.

Fix:

  • Explicitly specify the channel in your prompt: Post to #incidents using slackSendMessage with channel: incidents.
  • Use the {{slack.channel.name}} variable to reply to the channel where the trigger fired.

Bot Can't Post to Channel

Symptoms:

  • slackSendMessage fails with "channel_not_found" or "not_in_channel" error.

Common causes:

  • The bot isn't a member of the target channel.

Fix:

  1. Open the target channel in Slack.
  2. Invite the bot: /invite @dash0.
  3. Retry the automation.

Thread Replies Don't Work

Symptoms:

  • Agent0 posts a top-level message instead of replying in thread.

Common causes:

  • The prompt doesn't specify the threadTimestamp parameter.
  • The {{slack.message.timestamp}} variable isn't populated (wrong trigger type).

Fix:

  • Verify you're using a Slack message or reaction trigger that populates {{slack.message.timestamp}}.
  • Explicitly instruct Agent0 to reply in thread: Use threadTimestamp: {{slack.message.timestamp}} when calling slackSendMessage.

Further Reading