Background-
I am running VS Ultimate 2013 update 3 and Office 2013 and am going against a VSO (2013 I think) project
I have included TFS 2012 add-in for excel from here
C:\Program Files\Common Files\microsoft shared\Team Foundation Server\12.0\x86
05/01/2014 01:50 AM 665,792 TFSOfficeAdd-in.dll
I am able to access the project and download the data into Excel. I can update existing items and publish them successfully.
However, I am unable to add new items. I do have the permissions to create items (I can do it manually in VSO).
the error details I see are
TF237085: Item has an unknown error that cause BatchSave to fail