We would like to demonstrate you few of our reference Inventory Management Systems which have a very similar features mentioned in your requirement just to showcase our capability
We have recently created a Cloud based SaaS Inventory Management Application
Which has :-
-Product Management
-Warehouse Management
-Order management
-Order Fulfillment
-Accounting management
-Reports Generation
and many mores…….
It has
-Multi Warehouse
- Integrated with third party Marketplace websites like Amazon, ebay and Rekuten
-Integrated with third party shipping company integration like FedEx, UPS and USPS