Your changes conflict with new changes made to the server copy. Your changes have been saved to a temporary document. To ...

Your changes conflict with new changes made to the server copy.

Your changes have been saved to a temporary document. To close this document, do one of the following:

Keep: Replace your copy with the changes you made to this temporary document and resolve the conflict in the Document Updates pane.
Discard: Close this temporary document without updating the server copy or your copy.  Your changes will be permanently discarded.Keep&Discard&Cancel