*If Booking.com normally sends credit card details but did not do so for a specific booking please ask Booking.com to only accept bookings with a credit card number and if required ccv
'''Rate 123456 cannot be updated via XML'''
This rate has not been activated for channel management. Ask Booking.com to activate it.
'''Did not set Close Room 'XY for Rate Category 'ZZ' because of remaining Minimum Contracted Rooms on dates.....'''
You have guaranteed and to have a minimum number of rooms to sell on Booking.com but the channel manager is sending a lower quantity than contracted.
You have two options: