Issue reported that an invoice was exported from ALMA that was a credit card payment, and thus prepaid, with the payment status as paid. Such an invoice is created for internal records and should not be exported.
Investigated the export by examining the archived exported file from ADMIN1 and found the counterindication of <prepaid_ind>false</prepaid_ind>
This would indicate that invoice was not prepaid.
Examined the history of the invoice that showed that it was exported on August 8th, but modified to indicate that it was prepaid after the export. This explains why it was exported.