Hi,
in the EWM Monitor there is a node called "available stock" (EWM Monitor > Stock and Bin > Available Stock): If you create a product WT (unconfirmed) e.g. for an Outbound Delivery Order, you will see, that the available stock is reduced by the WT quantity - you can also compare it with the physical stock quantity (one node above in EWM Monitor), the physical stock quantity will stay.
Best regards,
Matthias