Hi,
I need to make sure, that am I in the right way, check below how I deal with document level discount/charge:
1. Allowance/Charge for Mixed Tax Categories:
Creating multiple <cac:AllowanceCharge> blocks at the document level—one for each distinct Tax Category present in the invoice.
2.The Distribution Method:
Proportionately, based on the share of the Taxable Amount (Sum of Line Net Amounts) for each category.
Below is a part of cleared invoice without any issues.
