EWM - WT without reference to source HU

Hi,

In a storage type which has fixed bins, whenever WT get created to remove stock from this storage type, i want the WT to be created without reference to a source HU. In my example, i have some HU cartons with 420 EA, and i create a replenishment WT of 420.

I made the setting 'available quantity' in st.type to 1 (storage bin). So i was expecting to read HU only when confirming the WT. Still the system is determining source HU when creating the WT.

Any other setting i might be missing?

Regards,

João