When you implement the Warehouse Management System (WMS), 
you manage goods movements and stock changes in the 
warehouse at storage bin level. However, if you implement 
Lean WM, inventory management takes place solely at storage 
location level. The system does not update the stock data 
at storage bin level using the quants.

You use Lean WM solely for processing goods receipts and 
goods issues. Using Lean WM, you process the warehouse 
movements in basically the same way as if using the 
Warehouse Management System: you work with deliveries, and 
you create transfer orders for these deliveries. These 
transfer orders serve as pick lists (see also Using the 
Transfer Order as a Pick List in Lean WM). We recommend 
that you implement Lean WM if you wish to pick deliveries 
in a warehouse that you are not managing using WMS.

The use of transfer orders in Lean WM provides the 
following advantages:

You can reprint transfer orders at any time. 
You can split transfer orders and thus distribute the 
workload better among the staff in your warehouse. 
You can pass on the transfer order target data and the 
names of those who process transfer orders to the HR 
application component, where this data can be used to 
calculate incentive wage.
If you do no wish to update stocks in your fixed bin 
warehouse at storage bin level, Lean WM provides you with 
the option of using the advantages of warehouse management 
through transfer orders in the same way as warehouse 
management using the WMS.



If you are already using the standard WM system, we 
recommend that you implement Lean WM in a further warehouse 
where no updating of stocks at storage bin level is 
necessary. In this way, you ensure that the processes for 
warehouse management are uniform in all warehouses.

Since Lean WM does not update stocks at storage bin level, 
you can display the stock quantities solely in Inventory 
Management (IM) and not with the stock overview function in 
WM. Also, you cannot process possible stock differences 
that occur in the warehouse using Lean WM, only using 
Inventory Management (MM-IM):