Field help (BPAADDPLAC) 

Enter one single address line (mandatory).
When the location type is Siteor Supplier, the information on the address line is automatically initialized with the information relating to the default address code of the site or the supplier. You can modify this information or select a different address code. You can also create a new address code and the identification information associated with it.
The changes in the information associated with an address code and the creation of a new address code are not copied to the site and supplier address table.