Orders from every sales channel are captured into a unified order management layer without manual consolidation. Shopify orders, Amazon Seller Central orders (via SP-API), eBay orders (via eBay Fulfillment API), and B2B wholesale portal orders all arrive in one place with normalised data, customer details, SKU list, quantities, shipping address, and payment status, regardless of how each platform formats the original order. Fulfilment routing logic routes each order to the optimal warehouse or 3PL based on configurable rules: proximity to delivery address, per-SKU stock availability, carrier cut-off times for same-day or next-day dispatch, and fulfilment cost per shipment. For multi-warehouse operations, split shipments are handled automatically when a complete order cannot be fulfilled from a single location, with carrier rate shopping (EasyPost or Shippo aggregating UPS, FedEx, USPS, DHL, Royal Mail, DPD rates) to select the cheapest compliant option per split. The pick list is transmitted to the warehouse management system (ShipBob, ShipHero, Linnworks, or a custom WMS via API); the shipping label is generated and printed at the warehouse; the carrier tracking number is written back to the order record and pushed to the originating channel's API (Shopify Fulfillment API, Amazon Confirm Shipment) so the platform sends its own dispatch notification to the customer. The full order-to-dispatch cycle runs without a single manual handoff.