Posts a payment to a past due invoice.
paymentAllowedvalue for a past due invoice is true. This can be determined calling [ML:GetBillingInvoicesPastDue].
The response returns information for a single payment, if a payment ID was used in the endpoint, or a list of payments. If the from date or to date queries or payment ID are not used, the response returns payment information for the last 365 days. If the request was for a single payment ID, the
previousUri properties are not returned.
Privileges required: account administrator
The external account number (int) or account ID Guid.