URL retrieve QueryExpression query = new QueryExpression("list"); //Name of the entity to be passed whose records need to be retrieved var nIsToNRelationshipName="cdi_emailsend_suppressed_list"; //schema name of N:N relationship query.ColumnSet = new ColumnSet(true); var link = query.AddLink(nIsToNRelationshipName, "listid", "listid"); //Method Signature: AddLink("N:N schema name to be passed", "Primary key ID schema name of entity record to be retrieved", "schema name of attribute in the N:N relationship") Guid emailSendID = new Guid("79121c07-220e-41ae-9710-96b880973e6c"); //sample ID of Email Send record for which we are retrieving related records link.LinkCriteria = new FilterExpression() { Conditions = { new ConditionExpression("cdi_emailsendid", ConditionOperator.Equal, emailSendID) // Filter condition to get related marketing lists of an Email Send record } }; EntityCollection collRecord...