APP LINK

first of all you should register like an admin , to put your goods,Second register your cashier, owner , delivery boy.
When the customer register in this app , he get an id , he use this id to login and sale.
the invoice was went to cashier, the cashier put his comment and send this invoice to owner or delivery boy.
the delivery boy check the invoice details,when he finish his delivery he check it and this invoice was removed from the delivery invoice list of delivery boy