This blog article is all about relationship behaviour between two MS CRM 2011 entities. We all know that in Dynamic CRM 2011 there are three type of relationship they are 1: N, N: 1 and N: N but little is know about the relationship behaviour that each of these relationship type possesses. There are four relationship behaviour in CRM 2011. The relationship behaviour feature of MS CRM controls the resulting action that will happen if a related entity record is deleted, Assigned, Shared, Unshared, Reparent and Merged. These behaviours can be controlled by going to settings of the relationship.