MS CRM Lookup
October 16th, 2008 — ¥ong¥sHere is a good reference explains how to configure MS CRM lookup field!
“As many of you already know that the CRM lookup field saves the GUID of the related entity. Let’s have a deep view of the lookup field. When you create a relationship between two entities, one entity can reference the other entity through a lookup field…”
http://jianwang.blogspot.com/2008/05/mysterious-crm-lookup-i.html