Update 2/27/2019
Software vendors just received the below messaging from Arizona Department of Revenue. It seems the state may have implemented changes without allowing vendors adequate time to implement these updates internally. AZ is in the process of rolling back updates. Any impacted AZ returns with Reject Code 603 or 636 can be resubmitted at this time.
“Business Rule 603 and 636 Communication: We apologize for the inconvenience and the late notification on these changes. We will roll back the changes within the next few hours, to provide you with more time to implement them. We will send another notification when the changes have been rolled back. We plan to relaunch these changes on March 28, 2019.”
We have opened Issue 2993 regarding the below Arizona reject code some sites have received. Please hold impacted AZ returns until we mark this post as resolved to resubmit impacted AZ returns.
Reject Code: 603 – ATT – If the itemized indicator is checked, a Federal Schedule A must be attached to the Arizona XML; ATT – An AZ Schedule A series or Federal Schedule A, Itemized Deduction form, was not attached to the return.