InvoiceUnderPayment(20007014, InvalidData)

Description

The integration is attempting to match a transaction to an invoice, but payment + fees are lower than the invoice amount. Therefore, posting is stopped as an underpayment. The message about no “credit-invoice events” means the transaction lacks a valid link to a credit note/adjustment that could reduce the invoice amount.

Cause

• The payment (possibly together with fees) is lower than the invoice total.

• Fees in the transaction are booked so that payment + fees < invoice amount.

• A previous partial payment/adjustment exists, but this transaction does not settle the remaining balance correctly.

• Missing credit-invoice event that could have reduced the invoice amount.

• Small differences due to currency/rounding.

Resolution

• If possible, change the integration settings to allow underpayments.

• Pay the invoice manually in the receiving system.