Requirements: none in particular.
- On your Profile, “Channel-linked access” panel, find the linked channel.
- Tap “Unlink”.
- Confirm in the browser’s dialog box.
Result: you instantly lose the ability to operate from that channel — any active session closes and the number/chat goes back to section 7’s behavior (“visitor”). If you want to use it again, you’ll have to link it again from scratch (section 3 or 4).