Solution : https://service.sap.com/sap/support/notes/825186 (SAP Service marketplace login required)
Key words :
purchases report displays incorrect differences, output list 'tax difference, returns incorrect results, attached correction instructions, double-check reason, tax control, tax amount, double-checked, line item', terms rfumsv00
Related Notes :
| 1361615 | RFUMSV00: Tax control for documents from SD |
| 1104702 | RFUMSV00: Enhancement of difference list |
| 900597 | RFUMSV00: Diffs with SD billing documents in foreign crcy |
| 838230 | RFUMSV00: Tax control in case of alternative tax rate |