Hi,
I’ve got a problem, during CheckIn file from code (only for few users). I received error:
Unauthorized user ‘user1′ tied to checkout/in file ‘filename’. Currently checked out to ‘user1’. Locked: None.
Of course file is checked out to the same user.
Do You have any idea?
Hmm did you check Credential Manager in Control Panel? See this blog: http://www.sharepointindepth.com/the-file-is-locked-for-shared-use-by/