Receiving TPE1201 error with 2019 ACA submission
We receive the following error when submitting our files on the IRS site:
[TPE1201] Our system has detected a potential threat in the Form file and it cannot be transmitted. This may be due to malformed XML. Please review the XML standards outlined in Section 3 of Publication 5258, AIR Submission Composition and Reference Guide, located here, correct any issues on the Form file, and try again.
Anyone have ideas on what is causing this?