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The reservation pull process begins with the PMS sending an OTA_ReadRQ message to PmsXchange and being returned an OTA_ResRetrieveRS. The main payload contents of the OTA_ResRetrieveRS message are HotelReservation elements which contain the details of zero or more reservations. The PMS is expected to process these and then confirm delivery by sending an OTA_NotifReportRQ message to PmsXchange. In response to this message PmsXchange will return an OTA_NotifReportRS message.
Please refer this page for an overview of the reservation delivery process (OTA_ReadRQ ↔ OTA_ResRetrieveRS & ← OTA_NotifReportRQ) - PMS Technical Architectural Diagram
Important Notes
Delivery confirmation is essential
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