Workflows: Slack - Get Users in Channel Card Returns "channel_not_found" Even Though the Channel Exists
Jan 26, 2026
Workflows
Okta Classic Engine
Okta Identity Engine
Overview
When attempting to perform operations such as Get Users in Channel, the card fails with channel_not_found even though the channel exists.
Applies To
- Workflows
- Slack Connector
Cause
The calling user must be a member of the private channel. This is a limitation of Slack's API.
This also applies to other actions that require user membership (for example, Send Direct Message to Channel).
Solution
The user must be added as a member of the private channel in order to review details related to the channel.
