If you have Maximo Inventory Management, why would you need a Warehouse Management system? 

While IBM Maximo Inventory Management is a world-class tool for MRO (Maintenance, Repair, and Operations), it is fundamentally an "Inventory Management System (IMS)—focused on what you have and when to reorder. 

An advanced Warehouse Management System (WMS) (e.g., Manhattan, Blue Yonder, or SAP EWM) is a "flow" system focused on how things move through the building. 

We will disuses the specific capabilities found in an advanced WMS that are typically missing or highly limited in Maximo.