SAP Message 8A305 - Withholding tax base amt for WT type &, WT code & has been recalculated

Diagnosis
If you change the withholding tax code the withholding tax base isrecalculated. If you have entered a withholding tax base amountmanually it will not be changed.

Procedure
If you have entered a withholding tax amount manually please check ifthis amount is still correct.