An employee accidently key a social in place of the last name. It run all the way through the process. When the file was sent to the IRS it was rejected with a TPE1024 error, after examining the xml file I determined that when Skyward created the xml file the numbers were deleted from the SSN leaving 2 dashes (--) the IRS flags this as a potential SQL injection attack. This error should have been caught at some point before it was sent to the IRS