With the ibis BUSINESS card, you get guaranteed room availability when you book before noon at least two days prior to your arrival, through a direct channel* (don't forget to provide you ibis BUSINESS card number upon booking).
The guaranteed room availability applies every day of the year, except for a few exceptions called “Black Out Dates”. These dates vary from one hotel to another and are limited in number for each hotel. Black Out dates may be reviewed on the ibis BUSINESS Exceptions to Guaranteed Room Availability page.
Kindly note that the guaranteed room availability is only applicable to subscriber’s room (it does not apply for the second room booked, contrary to ibis BUSINESS discounts).
*all.accor.com, APP, Accor call centers or directly with the hotel.