Bookings unable to inform customer when there is a change in opening hours

Babu_Alagarsamy 

Hi Babu, thanks for your reply! '

Yes you're right on the scenario and I was also surprised that no notification was sent to the customer given that there was a confirmation on the previous time slot. 

For the booking admin calendar - how do i check the setting?

The below screenshot is when I edit the services.

I do the re-scheduling via the Avaliability options. 

For example: 

Initially the services is open from 2 to 3pm (15 mins per slot), and one of the customer booked a slot of 15 mins at 2.45pm to 3pm. Our side have some changes and we have to update the time from 4 to 5pm. Hence, I came to this page and on the Avaliability options - I adjusted the start and end time. 

Shouldnt the system be able to detect that there is an booking already made and then automatically cancel the piror appointment booking for the staff and customer?

Thanks!