UBL-CR-470: Show prepayments as a paid amount, not as separate payments

What it means

The rule warns when the invoice or credit note has a cac:PrepaidPayment directly under it, a record of an earlier payment such as a deposit or advance. EN 16931 carries prepayments only as one total, the paid amount (BT-113), which is taken off to give the amount due (BT-115). This is a warning.

Why it matters

EN 16931 records the paid amount (BT-113) in the totals rather than in a cac:PrepaidPayment block.

How to fix it

Enter the total already paid in the paid amount field of your invoicing software, often called prepayment, deposit or amount already paid, so the amount due is lowered by it. If you build the XML yourself, delete cac:PrepaidPayment and check that cbc:PrepaidAmount in cac:LegalMonetaryTotal holds the total and that cbc:PayableAmount is the amount due after it. Check the corrected file again.

The rule as published

A UBL invoice should not include the PrepaidPayment

Where this rule applies