When testing 2014 electronic file W-2 submissions, the SSA's AccuWage software may provide this alert:
This is a non-critical alert or warning message.
If you are submitting a file on behalf of your own company, then the Submitter EIN and Employer/Agent EIN are in fact going to be the same. Nothing in that event is wrong.
In an era where employers are being encouraged to upload their information electronically, it is somewhat peculiar for end users to encounter this sort of warning which presumably is designed more to help tax practitioners catch mistakes prior to submitting files on behalf of others.