Options to manage how people contact you on Messenger
Android App Help
iPhone App Help
iPad App Help
Computer Help
Android App Help
iPhone App Help
iPad App Help
Computer Help
You can't log out of an account on Messenger, but here are some things you can do to reduce notifications, make yourself unavailable or stop getting messages from certain people:
Turn off or adjust notification settings
Block someone's profile
Appear as inactive
Control your privacy
You can also switch Messenger accounts.
Note: If you think you've left yourself logged in on someone else's phone, you can end an active session from the Security and login settings in your Facebook app.