middlewarehouse

middlewarehouse

middlewarehouse is our middleware Warehouse Management System (WMS) that is designed to interact with our Order Management System (OMS) in Phoenix and the external 3rd-party logistics (3PL), warehouses, WMSs, and shipping services.

Requirements

Speed

At it's core, middlewarehouse is focused on reading and updating inventory quanties exceedingly fast. The service must handle high levels of concurrent traffic so that inventory dispositions can be quickly updated.

All other actions that may be helpful, but unnecessary to the process of recording inventory changes (such as maintaining inventory summaries and audit logs) will be asynchronous operations that use Green River.

Inventory Source of Truth

Representations of all the different stock locations (physical places where inventory is stored) live inside middlewarehouse. By having visibility into the type and quantity of inventory in each stock location, the system will maintain an accurate representation of current inventory levels at all times.

Shipping Management

The creation of shipments, including the logic for split shipments, lives inside this service.

API Operations

• Modify counts
• Try to reserve some set of SKUs
• Try to unreserve some set of SKUs