Changes

3) Set "Booking.com Rate Type " = "Per Occupancy Pricing" as this is the default for the Booking.com connection.

Some Booking.com rate ids can accept a room price plus a single occupancy price on the same rate id. If you have this rate type and want to send the single occupancy price set "Booking.com Rate Type " = "Per Day Pricing + Single". If you do not have this rate type or you are not sure set "Booking.com Rate Type "= " Per Day Pricing" or "Per Occupancy Pricing"