Good evening Community.

I'm having a problem and I wonder if anyone can be of help. I get an error message when  attempting to efile  a tax return.  Both the federal and the state return are being converted but neither will transmit.  The error message reads "Invalid Filer Id.  Must be a valid SSN or EIN. ID="

I transferred the client data from last year and verified the SSN is correct.  I've updated the product, run and re-run final reviews with no errors.  I've even already successfully efiled other returns both before and after attempting to efile this problem return.

Any suggestions on what could be the problem?

Thanks