I had a payment made by my CPA firm for the PTET and the software says I cannot file electronically because the withholding is not by W2, W2g, 1099 OR1099 r

Did you put the amount in under "Other Withholding" ?

or under "Estimated Tax"  ?

@jklim58 

If you file on paper you would attach a tax document showing tax withheld.

CPA should be supplying a 1099-ES or equivalent.