-Sales Management
-Customer Management
-Purchase Mangement
-Suppliers Mangement
-Expenses
-Reports
-Access Permission 
-Admin should be able to check the client history (Invoices & Payment)
-Proforma Invoice should be given to the client showing the items collected and the quantities only not price and to be printed
-Download the invoice as pdf
-Admin should be able to give discount 
-The sales invoices have to be filtered by paid and unpaid 
-Monthly Sales Report by branch
-Graph in dashboard to show the sales per days in each month
-Show client Balance due 
-Delete and edit invoice
