Stock Management System

We need a stock management system for our ebay/websites. We currently use a Excel spreadsheet and when games sell we have to manually reduce the number. We now deal with 100-200 orders a day and this simply isnt viable. We need a system where we can update large numbers of orders quickly and effectively. I also trade wholesale and internationally, so the system need to be our main system for all aspects of our business. I also need the system to be able to show when we need to reorder stocks, work out profits at the different for sale prices We currently run 2 ebay stores and 5 websites ## Deliverables We also need to system to show when products need reordering. an all in one stock management solution is required! It needs to be able to generate invoices