BR-AG-07: In a Document level charge (BG-21) where the Document level charge VAT category code…

In UBL, for a cac:AllowanceCharge with cbc:ChargeIndicator=true(), the rule checks each cac:TaxCategory that has cbc:ID equal to M and a VAT tax scheme; its cbc:Percent must be 0 or greater (>= 0). In CII, for a ram:SpecifiedTradeAllowanceCharge with ram:ChargeIndicator/udt:Indicator=true(), it checks ram:CategoryTradeTax with ram:CategoryCode = 'M' and ram:TypeCode VAT (case-insensitive); its ram:RateApplicablePercent must be >= 0. The rule's message says the category code is IPSI, but the test in both syntaxes selects code M. The test only enforces a non-negative numeric rate; a missing rate or a negative value causes a fatal validation error.

Set the cbc:Percent (UBL) or ram:RateApplicablePercent (CII) on the charge's tax category to a numeric value 0 or greater, e.g. 0, 5, 19. Remove any negative value or ensure the element exists. If your invoice uses a category code IPSI that is not mapped to M, the rule as written will not apply; check the code mapping used by the sender to match the test's expectation (M).