Hmm, that's a good one, b/c the one i just created does NOT give me error, thought maybe it had to do w/ whatever you selected in part II as to which type, the only thing that occurred for me was a 990-PF ONLY and it made me then put in phone number..... but i would imagine it's some selection that makes it then required, but honestly not sure.  I'll see if i can find out anything though.