Solution : https://service.sap.com/sap/support/notes/380944 (SAP Service marketplace login required)
Key words :
additional key words extended withholding taxes, transaction se91 enter message class '7q', changing relevant withholding tax types' enter, activate open items posted prior, relevant withholding tax types changing, additional relevant withholding tax type, choose 'change' create message 020, withholding tax dialog box, relevant withholding tax types, attached source code corrections
Related Notes :
| 379529 | RFWT0010: subsequent generation of withholding tax info |