Endpoint: https://api.myallocator.com/callback/ota/{ota}/v202203 (replace {ota} with your channel ID)

This is for technical support on the remote OTA to enqueue a full refresh of the property. You may use either ota_property_id (it may be resolved into a number of Cloudbeds channel manager IDs) or mya_property_id.
Note that full refreshes are heavy operations, so only call this when absolutely necessary. Under no circumstances use this callback on a scheduled basis.