Solution : https://service.sap.com/sap/support/notes/943768 (SAP Service marketplace login required)
Key words :
terms budget billing plan, budget billing plan, sales/purchases indicator, tax amendment reason, longer automatically recalculated, -added tax, report reumws00, relevant add-, support package, correction instructions
Related Notes :
| 990271 | REUMWS00: Change of the tax amount |
| 987156 | REUMWS00: Various changes in the program |