Why are ADS bookings now overriding availability in eRes, instead of failing?

Why are ADS bookings now overriding availability in eRes, instead of failing?

1. ADS Interface and Availability
  1. The eRes ADS interface will send a full availability update once per day and partial availability updates throughout the day as availability changes, to update availability on the channel.
  1. When there is availability for the property a reservation can be made and once finalized the reservation is assumed confirmed on the channel and cannot be cancelled at this point in time.
  1. The eRes ADS interface (for that channel and property) will send reservation collect messages, at set intervals, to retrieve this channel reservation and attempt to create it as a new eRes reservation.
  1. In most instances the availability shown on the channel will match to what is shown on the eRes front-end and the reservation will create successfully.
2. Zero Availability on eRes 
  1. In the scenario where there is zero availability on the eRes front-end for the itinerary stay dates of the reservation,  then the ADS Interface will overbook the reservation and highlight in the Confidential memo 'zero availability overridden to make *channel* booking'.
  1. Previously in this same scenario, we would return an error response to the channel (e.g 'Not enough units available'). However the channels do not acknowledge this error response because (as highlighted earlier) they have already confirmed the reservation at the point when the booking was saved on their platform. 
  1. Instead of the channel reservation failing over to email / fax notification (and having to potentially create the reservation manually or the reservation notification being missed completely) it will now be overbooked in eRes. 
3. Reasons for potential overbookings
These reasons may include:
  1. Last Room Availability discrepancy due to the room on the Central Reservation System (CRS) being booked via another channel, whilst the guest is in the booking process on the OTA. Hence no availability by the time the OTA completes the booking process.
  1. The OTA Auto-replenish rules are for example: A reservation is cancelled on the OTA, and they place availability back into their pool, before the cancellation is received by eRes. Meaning they are selling inventory that could be sold via the CRS and other channels before the availability is updated again.
  1. Delay in processing availability uploads between the CRS and OTA.
Please Note
  1. These are some of the potential causes but a separate investigation into why the availability discrepancy between the channel and eRes exists, may need to take place to identify why the reservation was overbooked to begin with. 
  1. OTA's don't receive realtime availability and rates and will also not commit reservations from realtime availability. HTI will send Availability and Rates by doing a full upload (availability for a year) once a day, and if there are any inventory changes this will be sent as well.
  1. This data is then stored within the OTA which is what they book from.
  1. Reservations are placed in the same pool and pulled from there to create the booking in CRS.


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