I am developing a billing software with a centralized database unit .
The question which i have is , in restaurants they used to take orders either in android device or mac device how does the order gets sync with the one in the billing counter . If its basically via the android service or mac service , can you guide me where can i get tutorials.
P.S : i am building desktop application with windows forms and mobile app via xamarin only for android as for now
Thanks in advance