While trying to e-file form 1065 today, I received the following error message "Form 1065 p1-3: Item C is invalid for Electronic Filing. You must enter a valid 6 digit Principal Business or Professional Activity Codes. Please reference Form 1065 instruction for more info". I have used the same business code for 30+ years and has been the same code for e-filing the last 6 years. I tried another code in similar industry and that, too, did not work. I tried clearing the field and re-typing, thinking there was a space. Please advise. Form due in 14 days!
