JUMP TODeveloper DashboardMy RequestsScan APIScan API/getBarcodeStatuspost/setBarcodeStatuspost/getAvailabilitypost/getTicketTypespost/createReservationpost/completeReservationpost/getTurnoverpostAttractions Ticketing ResellerReseller API/getAvailableUserspost/getTicketTypespost/getAvailabilitypost/createReservationpost/completeReservationpost/createCompleteReservationpost/cancelReservationpost/cancelCompleteReservationpost/addContactpost/checkContactpostGeneral Admission Partner APIAuthenticationSign InpostReservationsGenerate ReservationpostCreate ReservationpostComplete ReservationpostGuest ListGenerate Guest List ReservationpostGenerate Guest List Reservation (Per Ticket)postOrdersGet Order DetailsgetGet OrdersgetGet Order ConsentsgetCancel OrderpostBarcodesGet Barcode DetailsgetGet BarcodesgetGet Account BarcodesgetCancel BarcodepostCustomer DataGet Customer DatagetEventsGet EventsgetGet Event DetailsgetProductsGet Product DetailsgetGet ProductsgetScan API (General Admission)User loginpostScan ServicesgetBarcodesgetStatisticsgetScan CheckinpostScan CheckoutpostScan Upload (Sync)postLookup (Search)postSeated APIGeneralReportingCallback functionalitySubscriptiongetTicketgetScan integrationgetEventgetVenuegetVenueSectiongetBlockadegetCustomergetCustomerpatchOrderget/checkContactpost https://globalreseller.nl/webservices/checkContactDescription: This functionality is used to check if "addContact" was successful. HMAC calculation Base64 encode - SHA256(apiKey + reservationId) Sort the sign data alphabetical ascending, you can also find the sequence on the concerned API specification page.