Solution : https://service.sap.com/sap/support/notes/400532 (SAP Service marketplace login required)
Key words :
additional key words wtmg, extended withholding taxes, attached program corrections, authorization check correctly, transaction wtmg, withholding tax, program error, correctly processed, authorization check, correct activity
Related Notes :
504442 | WTMG: red traffic light in 'Convert documents' zero amount |
390148 | WTMG: Composite note for withholding tax changeover |