Because every ATG commerce site has its own requirements for the information it must store for external users, most applications will need to extend the profile properties that are shipped with ATG Commerce. This section describes the custom properties and item descriptors that were added for Commerce Reference Store as well as changes to existing properties and item descriptors. The new and modified definitions are added to the profile repository by the /atg/userprofiling/userProfile.xml file in <ATG9dir>/CommerceReferenceStore/Store/EStore/config/config.jar.
