FAQs On this page you can find the most frequently asked questions. Can't find your answer? Don't hesistate to contact us! Name matchingWhen can I expect a COULD_NOT_MATCH?What is the difference between a NO_MATCH and COULD_NOT_MATCH?What is the minimum requirement to receive a MATCH?Why do I get a name suggestion in case of a NO_MATCH on business accounts?How does the algorithm work when there are multiple account holders?For the BANK API, is it possible to get a COULD_NOT_MATCH with another account status (active or unknown)?Error messagesWhy am I receiving a gateway timeout error for your acceptance environment?Why do I get a 403 error response?Technical questionsWhen do I need to fill the X-End-User header, and with what do I populate it with?Account typesHow long is an account marked as INACTIVE?What does it mean when an account type is NOT_SUPPORTED?Offline Data provisioning in the EUFile DeliveryWhich encoding is required for the file?How should we provide data for an account with multiple account holders?How should we provide data for an individual with a surname combining their partner's surname and birth name?Fields to be providedIs the ascription field (tenaamstelling) used for matching?What should we do if we haven't validated the partner names?What should we do if we don't have a separate data field for the partner name?File DeliveryWhat should we do if we don't have a separate data field for the partner name?When can we send files to the acceptance environment?Go liveWhat happens if we miss a mandatory field in the data load?What are the requirements to go live?