Ankit,
Instead of marking ZWMS as statistical, try with requirement 24 to make it active only in billing document. Maintain tax codes in your condition records for both tax conditions. Also, unmark MWST as mandatory.
Ankit,
Instead of marking ZWMS as statistical, try with requirement 24 to make it active only in billing document. Maintain tax codes in your condition records for both tax conditions. Also, unmark MWST as mandatory.