Solution : https://service.sap.com/sap/support/notes/500429 (SAP Service marketplace login required)
Key words :
attached source code corrections, maintain text element 105, withholding tax codes, withholding tax, withholding tax', program documentation, cleared automatically, customer documents, terms sapf124, qsskz reason
Related Notes :
538265 | SAPF124/E: documents considered relevant for withholding tax |
499902 | SAPF124/E: No clearing of documents with withholding tax |