Manager etc ) password recovery system change password system login details item / invoices product >. Restore ) notepad attached word pad attached calculator attached task manager attached ms word report attached creator management requirements. All sales / invoices report sales by customer report customer report date wise sales report date wise customer bill receipt payment report items / product report others >. Invoice items no (auto generate) inventory invoice date customer details (select wise) product / item name. Unit price search by product name quantity total amount ( auto generator calculate ) add to billing cart system sub total