I have been using this API for a few years now and calling CreateAndSendInvoice suddenly stopped working about a week ago (live and sandbox). Here's the error response (sandbox):
Internal Error stdClass Object ( [responseEnvelope] => stdClass Object ( [timestamp] => 2023-06-26T09:30:27.539+0000 [ack] => Failure [correlationId] => b92469dfc1383 [build] => invoiceserv-3.2.10_20230622072703431 ) [error] => Array ( [0] => stdClass Object ( [errorId] => 520002 [domain] => PLATFORM [subdomain] => Application [severity] => ERROR [category] => APPLICATION [message] => Internal Error ) ) )
Other API calls still work using the same credentials (i.e. SearchInvoices).
