Open the service security settings
my.slack.com/account/settings → Two-factor Authentication
Sign into the intended workspace. Expand Two-factor Authentication, choose Set Up Two-Factor Authentication, confirm your password and select Use an app.
Add the account in Authenticator
- Keep the setup screen open. In Authenticator, use the add-account control.
- Scan the service’s setup QR code. On one phone, choose manual entry and copy the setup key instead.
- Give the entry a recognizable account label. Never share the setup key or QR code.
Confirm and keep a recovery method
Return to the service and enter the current code from your new entry. Setup is complete only after the service accepts it.
Scan the QR code or enter the key, then verify the current code. Save backup codes. Setup is per workspace account; SSO policies can change available options.
If the code is rejected
Check the account, wait for a fresh code and check automatic device time. Keep the service setup page open until confirmation succeeds.
Official Slack help
Based on the service’s official instructions, checked October 17, 2026. Available methods and labels can vary by account and app version.
Read the official instructions