// ** CreateManyToManyRequest ** //Ex: creates the entity relationship between the Account and Contact entities by using CreateManyToManyRequest. CreateManyToManyRequest createManyToManyRelationshipRequest = new CreateManyToManyRequest { IntersectEntitySchemaName = "new_accounts_campaigns", ManyToManyRelationship = new ManyToManyRelationshipMetadata { SchemaName = "new_accounts_campaigns", Entity1LogicalName = "account", Entity1AssociatedMenuConfiguration = new AssociatedMenuConfiguration { Behavior = AssociatedMenuBehavior.UseLabel, Group = AssociatedMenuGroup.Details, Label = new Label("Account", 1033), Order = 10000 }, Entity2LogicalName = "campaign", Entity2AssociatedMenuConfiguration = new AssociatedMenuConfiguration { Behavior = AssociatedMenuBehavior.UseLabel, Group = AssociatedMenuGroup.Details, Label = new Label("Campaign", 1033), Order = 10000 } } }; CreateManyToManyResponse createManytoManyRelationshipResponse = (CreateManyToManyResponse)_service.Execute( createManyToManyRelationshipRequest);