If you see the message:
Staff member ________ - ________ is not assigned to the selected binder ______. Please login to the Central Office Server and synchronize this binder. To synchronize the binder, right-click on the binder in your Local File Room and select "Synchronize Binder..." from the menu."
You would have to (depending on configuration)
1. Synchronize the binder to your central server
2. checkinthe binder to your central server
Make sure that the icon on the binder is instead of
If the above did not work, make sure to check in the binder & the trial balances.