Field help (LOCDES2) 

This is the location towards which the transfer must be carried out. The presence of this field and its management conditions (Displayed / Entered) depend on the setup of the entry transaction at use.
In the case of a stock change of Internal type, this field is loaded by default with the location specified in the header. When it can be entered, this field remains available for modifications on every line thus authorizing a multi-warehouse management.
SEEINFO The transfer of a product to a location attached to a warehouse is authorized only if the product-warehouse record exists for this given warehouse..