What will happen if I clear the data of fb in my settings

[AC Question]

In settings, what will happen to my fb account if I clear the data?

 

[smvim]

If you tap that 'Clear data' button that will delete any Settings changes you made to the app (locally on your phone). It basically returns the app to its originally installed state so you'll have to re-enter your user name/password and then let it re-sync itself to your online FB account.