SAP Message 7Q318 - Automatic search not possible if Extended Withholding Tax is active.

Diagnosis
You cannot use the "automatic search" function here because ExtendedWithholding Tax is active for the company code entered. You havemaintained withholding tax types for this company code which use morecomplex calculation procedures for calculating the withhholding taxbase amount (e.g. accumulation, check on the withholding tax minimumbase amount at document level). These more complex procedures are notcompatible with the "automatic search" function.

System Response
The system resets the "automatic search" indicator.

Procedure
Check the basic settings you have made for extended withholding tax.