Idempotent Bulk Reservation Operation. The max limit is 100 reservations per request. Note that all existing reservations are replaced with the contents of the reservations in the bulk. So if the fields property is left out of the body all fields will have empty values on those reservations. Similarly, if the status is left out, it will be set to C_CONFIRMED for all reservations. If organizations is omitted the reservations won't have any organization set. As for objects, only the objects in the array will be on the reservations. The other objects will be removed.