Slack plugin OAuth fails with invalid_scope_requested in Codex Desktop
Open 💬 0 comments Opened Jul 14, 2026 by tracyw14108
What version of the Codex App are you using (From “About Codex” dialog)?
26.707.72221
What subscription do you have?
Plus
What platform is your computer?
macOS 12.7.1
What issue are you seeing?
Problem
Connecting the Slack plugin in Codex Desktop fails before the Slack consent screen appears.
Error
invalid_scope_requested
Slack displays:
Unable to install ChatGPT. Invalid requested permissions.
Environment
- Slack workspace: W.RINES
- Slack workspace ID: T0BGU00159D
- User role: Primary workspace owner
- The workspace is accessible and Slack login works normally.
- Codex does not expose Action control for this account.
Expected behavior
Slack should display the OAuth consent screen and allow the workspace owner to authorize the integration.
Actual behavior
The OAuth flow is redirected incorrectly, then Slack rejects the requested scopes. The Allow button never appears.
What steps can reproduce the bug?
<img width="566" height="499" alt="Image" src="https://github.com/user-attachments/assets/e25c52df-6696-4a77-911f-5a698be95cdb" />
What is the expected behavior?
Slack should display the OAuth consent screen and allow the workspace owner to authorize the integration. After authorization, Codex should be able to connect to the selected Slack workspace.
Additional information
_No response_