Same problem here, 2 companies with two CA state EINs showing up in Box 15, one FEIN in b for the PEO because I had 2 employers that both used TriNet as PEO.
I bought the State E-file immediately before hitting this "You can't e-file because you have 2 entries with the same state in Box 15" blocker. What is in the boxes matches the W-2 & the PEO tells me they can't send 2 W-2s because it's the same FEIN.
