Acknowledging modified/cancelled reservations

Similar to new reservations, Booking.com maintains all incoming modified or cancelled reservations specific to a provider using a dedicated queue. For OTA implementation, Booking.com waits until you acknowledge receiving the modified or cancelled reservations successfully before removing the acknowledged reservations from the queue. Otherwise, Booking.com forwards the missed reservations as an email to the property after a specific time period.

When acknowledging you can send one of the following status:

Successfully processed - Booking.com acknowledges and removes the modified/cancelled reservation from the queue.
Unsuccessfully processed - Booking.com keeps the modified/cancelled reservations in the queue until you acknowledge successfully or until the timeout period.

To acknowledge modified or cancelled reservation

POST 
https://secure-supply-xml.booking.com/hotels/ota/OTA_HotelResModifyNotif

Use the POST OTA_HotelResModifyNotif endpoint to acknowledge processing the modified or cancelled reservations.

Confirm each reservation

Make sure to confirm every modified or cancelled reservation message in separate requests or in one request using the HotelReservationID tag multiple times.

Request body parameters

The following table describes the elements you must add in the request body:

Element	Attribute	Description	Type	Required/ Optional	Notes
`OTA_HotelResModifyNotifRS`		Root element.	object	required
	`TimeStamp`		datetime	required
	`Target`		Enumerated string	required
> `HotelResModifies`			object	required
>> `HotelResModify`			object	required
>>> `ResGlobalInfo`			object	required
>>>> `HotelReservationIDs`		Contains the reservation IDs for acknowledgement.	object	required
>>>>> `HotelReservationID`		Contains individual reservation ID for acknowledgement	object	required
	`ResID_Value`	Specifies the Booking.com reservation ID.	integer/alphanumeric	required	See the `<HotelReservationIDs>` element in the `GET OTA_HotelResNotif` response. The following instructions are applicable only when the OTA hotel reservation response token (`ota_res_response_token`) feature is enabled. To acknowledge a reservation that was changed since you last retrieved the reservation details, you must provide an additional `HotelReservationID` element with an alphanumeric value in the `ResID_Value`. You can copy and paste both the `HotelReservationID` elements from the `GET` call.
	`ResID_Source`	Specify the reservation source. Only applicable when the OTA hotel reservation response token feature is enabled.	object	optional
	`ResID_Type`	Specifies the Booking.com Reservation type. Only applicable when the OTA hotel reservation response token feature is enabled.	enumerated string	optional	Make sure to copy and paste the `<HotelReservationID>` elements under the `<HotelReservationIDs>` from the `GET` response. See the `OTA_HotelResNotif` endpoint response. Can contain the following values: - 14: To acknowledge a new reservation - 18: To acknowledge a reservation that was modified since the last retrieval. When using this value, make sure to provide both the `ResID_Value`s.
> `Success`		Specifies successful processing of the reservation.	object	required if `Errors` is not specified
> `Errors`		Contains the error details in case of failure to process the reservation.	object	required if `HotelResModifies` is not specified
>> `Error`		Contains information about individual errors.	object
	`Code`	Specifies the error code.	string	Accepts the value: 193.
	`RecordID`	Specifies the Booking.com reservation ID.	string
	`ShortText`	Specifies a short error description.	string

Request body example

This section contains request body examples for acknowledging both the successful and unsuccessful processing of reservations.

Acknowledging successful Processing

The following is a request body example to acknowledge successful processing:

<?xml version="1.0" encoding="UTF-8"?>
<OTA_HotelResModifyNotifRS TimeStamp="2022-10-03T10:09:55" Target="Production">
    <Success />
    <HotelResModifies>
        <HotelResModify>
            <ResGlobalInfo>
                <HotelReservationIDs>
                    <HotelReservationID ResID_Value="3161864333"/>
                </HotelReservationIDs>
            </ResGlobalInfo>
        </HotelResModify>
    </HotelResModifies>
</OTA_HotelResModifyNotifRS>


When the feature: OTA hotel reservation response token (ota_res_response_token) is enabled.

<?xml version="1.0" encoding="UTF-8"?>
<OTA_HotelResModifyNotifRS TimeStamp="2022-10-03T10:09:55" Target="Production">
    <Success />
    <HotelResModifies>
        <HotelResModify>
          <ResGlobalInfo>
             <HotelReservationIDs>
                 <HotelReservationID ResID_Value="3161864333" ResID_Date="2022-11-21T12:15:18"/>
                 <HotelReservationID ResID_Value="ec73416d" ResID_Source="BOOKING.COM" ResID_Type="18"/>
             </HotelReservationIDs>
          </ResGlobalInfo>
       </HotelResModify>
    </HotelResModifies>
</OTA_HotelResModifyNotifRS>

Acknowledging unsuccessful Processing

The following is a request body example to acknowledge unsuccessful processing:

<?xml version="1.0" encoding="UTF-8"?>
<OTA_HotelResModifyNotifRS TimeStamp="2022-10-03T10:09:55" Target="Production">
<Errors>
        <Error Code="193" RecordID="1568716590" ShortText="Cancellation process failed"/>
    </Errors>
</OTA_HotelResModifyNotifRS>

Response body example

<?xml version="1.0" encoding="UTF-8"?>
<OTA_HotelResModifyNotifRS xmlns="http://www.opentravel.org/OTA/2003/05" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.opentravel.org/OTA/2003/05 OTA_HotelResModifyNotifRS.xsd" TimeStamp="2022-10-10T21:59:59+00:00" Target="Production" Version="2.001">
    <Success />

</OTA_HotelResModifyNotifRS>
<!-- RUID: [UmFuZG9tSVYkc2RlIyh9YQMydIV8Fx+o2Wqv/rSFjVhPQmNTNQOh0DHFllDlnQOBEtga8499WE8bMlo2GY/YYsGg5ebeklLwRietn9CAsVs=] -->

Response body elements

The following table describes the response elements:

Element	Attribute	Description	Type	Notes
`OTA_HotelResNotifRS`		Root element.	object
> `Success`		Contains the success status of the request.	object
> `Errors`		Contains the error details.	object
>> `Error`		Contains information about individual errors.	object
	`Type`	Specifies the error type.	string
	`Code`	Specifies the error code.	string
	`Status`	Specifies the reservation's processing status.	string
	`ShortText`	Specifies a short description of the error.	string
`RUID`		Specifies the Booking.com `RUID` string, which is an encoded string used by the Booking.com staff to trace back any updates made before.	object	Whenever the Connectivity Partner wishes the XML-Team to look at any logfiles for debugging or the like; the RUID string needs to be provided. This will enable the Booking.com technical staff to provide Connectivity Partners with support.

Quick Actions

→ For troubleshooting information, see Troubleshooting and list of error codes.