need a Multi Chanel Ecommerce App for inventory control etc....

Listing Creation
Listing Management
Multi-Channel Inventory Control
Multi-Channel Price Control
Auto-Import Listings
Product Categorization
Product Variations
CSV Data Import/Export
FBA Inventory and Multi-Channel Fulfillment
Max Quantity Control
Simple eBay Templates
Tracking Pushed To Channel
Shipping Control Management
Multi-Warehouse Capabilities
Inventory Source Prioritization and Control
ShipStation Integration
Deliverr Integration
Rakuten Super Logistics (RSL) Integration
Custom eBay Templates
Auto-Split Fulfillment
Order Routing and Splitting
Kitting and Bundling
Virtual Kitting and Bundling
Walmart 2-Day Shipping Tags
Purchase Orders
Receiving
Vendor Catalog
API Access
Account Masquerading
SKU-Level Inventory Source
SkuVault Integration

FTP Inventory Integration