hi i need sales management app something already made similar to my requirements ( if u have some thing related to this then only bid else not)

An android sales management android application with Admin/Salesman/Customer modules. The application will be offline and sync when online Admin will have the capability to Admin 1. Add a Warehouse Admin 2. Add Salesman Accounts and Link with Warehouse Admin 3. Create Products Admin 4. Stock Products Admin 5. View Salesman/Customer Sales Report Admin 6. Edit/Delete Customer Invoices created by Salesman Salesman will have the capability to Salesman 1. Add/Edit Customer Accounts Salesman 2. Create Sales Invoice for Customers Salesman 3. Create Receipt from Customers Salesman 4. Enter Expense Invoice/Note Customer will have the capability to Customer 1. View Products Catalog Customer [login to view URL] Invoices/Payment Receipts Customer [login to view URL] messages directly to admin