No warning of overbooking through reservation prolongation via properties

Hi everybody,

we recently stumbled  across the challenge that it is possible (independent of the role and rights) to overbook a property if you follow following steps:

Case:

• Guest wants to prolong his stay for another night and the reservation team did not check the availability for the next day (the hotel is fully booked on the next day)
• Reservation is opened with click on manage
• under properties tab the departure date is prolonged for one night
• no warning appears that there is no availability, it only shows that the change was successfull
• the timeline, however, now shows that we are overbooked

I do have two big problems with that:

• Everybody, no matter the role and rights can overbook the hotel via this way
• there is no warning whatsoever, that the hotel will be overbooked when prolonging this guest’s stay

Does anybody know a way how to avoid this? Please do not say, check availability first ;). 

Thank you and kind regards
Tobias