service · inferred from evidence
chat.postMessage
A Slack API method for posting messages to channels, DMs, or private groups.
- channel_not_found when posting to DM or private group with Slack Bolt
`channel_not_found` here means the bot user is not a member of that conversation. A bot can only `chat.postMessage` to DMs and private groups it has been added to. Fix: invite the bot user to the DM/private group (or have a user start a DM