Booking.com has informed us the incident is over and completed as of 2025-11-27 01:16 CET.
Beginning on Friday November 21st, Booking.com had an issue where it began sending numerous modifications of reservations, yet no details of the reservation had changed.
Booking.com is aware of the issue, and while Booking.com did report the issue was solved yesterday, the issue is still ongoing.
Just now we have launched some business logic to suppress the duplicate reservations, while we wait to learn from Booking.com when the issue will be solved.