Update: We delivered a change to the application that strips the extra spaces in the e-file package to prevent the validation error
Validation error: The ‘http://www.irs.gov/efile:ReasonForFilingAmdReturnTxt’ element is invalid – The value ‘EXPLANATION ENTERED IN APPLICATION DISPLAYS HERE’ is invalid according to its datatype ‘http://www.irs.gov/efile:MediumExplanationType’ – The Pattern constraint failed.
Navigate to the 1040X and edit the explanation and correct the explanation For electronic purposes, the information must be entered on one continual line without extra spaces or line returns. See the examples below:
