Field help (DEFLOCITF) 

For each location type, you can specify the Location that will be linked to the product-site by default. When a location is entered, it can be used in stock movements. However, the LOCSUG - Suggested locations parameter (STO chapter, MIS group) must be set to Based on product setup.

The location suggested by default is the location entered at the Product category level. You can modify it. You can enter a code with a generic character (*,#,!,?) or a code from the Locations table. If the location is of a dedicated type, an assignment must be established for this product.