Allowance/charge percentage for fixed-value discounts

We are receiving a Warning pertaining to business rule BR-KSA-EN16931-05: Allowance/Charge percentage (BT-94, BT-101, BT-138, BT-143) must be provided when the allowance/charge base amount (BT-93, BT-100, BT-137, BT-142) is provided.

What is the expectation if the order line discount is not, by nature, percentage-based? For instance, we are applying a ‘fixed amount off’ discount, i.e. $2 off the regular item price. Are we obligated to calculate a percentage value of this discount or may we ignore the Warning?

<AllowanceCharge>
      <ChargeIndicator xmlns="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2">false</ChargeIndicator>
      <Amount xmlns="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="SAR">5.00</Amount>
      <BaseAmount xmlns="urn:oasis:names:specification:ubl:schema:xsd:CommonBasicComponents-2" currencyID="SAR">9.35</BaseAmount>
 </AllowanceCharge>

no it’s a fixed amount not a percentage please refer to SDK=> data/samples directory to see how you can specify every thing related to discount.

Regards,