Inventory tracking is monitoring stock levels so you know which SKUs you have in your warehouse and the exact locations in which you store them.
Orders come to the warehouse system through API from multiple vendors. Those orders than can be processed and send back shipping information back to vendors via web-hooks.
Picking and packing are two core functions performed in a warehouse. A warehouse management system should generate pick lists for each picker to retrieve items in the most efficient way.
Based on the delivery options and shipping services you offer to customers, shipping carriers like DHL, USPS, FedEx, and UPS will pick up orders from the warehouse to ship packages to their next destination.
A warehouse management system should provide out-of-the-box operational and inventory reports across the warehouse. This may include accuracy in fulfilling orders (total mis-picks, mis-packs, etc.), total orders fulfilled by the hour to measure efficiency of staff, orders shipped on time, and much more.