entity-relationship-metadata-messages.md

title	description	ms.custom	ms.date	ms.reviewer	ms.suite	ms.tgt_pltfrm	ms.topic	applies_to	helpviewer_keywords	ms.assetid	caps.latest.revision	author	ms.author	search.audienceType
Entity relationship metadata messages (Developer Guide for Dynamics 365 Customer Engagement) | MicrosoftDocs	The article describes the messages that you can use to create, retrieve, update, and delete entity relationships		10/31/2017	pehecke			article	Dynamics 365 Customer Engagement (on-premises)	entity relationship messages, list of messages with descriptions entity relationship metadata messages, list of messages with descriptions entity relationship eligibility, messages for relationships, list of messages for entity relationships	14b504b9-addb-40cd-aeef-a45a6a24bbcb	16	JimDaly	jdaly	developer

Entity relationship metadata messages

Entity relationships define how entities are related to each other. This includes information about how relationships are represented in the application. Also, when actions are performed on a record, the relationship indicates what actions to perform on related records.

Entity relationship messages

The following table lists the messages that you can use to create, retrieve, update, and delete entity relationships.

Message	Description
xref:Microsoft.Xrm.Sdk.Messages.CreateManyToManyRequest	Creates a many-to-many relationship between two entities.
xref:Microsoft.Xrm.Sdk.Messages.CreateOneToManyRequest	Creates a one-to-many relationship between two entities.
xref:Microsoft.Xrm.Sdk.Messages.DeleteRelationshipRequest	Deletes an entity relationship.
xref:Microsoft.Xrm.Sdk.Messages.RetrieveRelationshipRequest	Retrieves an entity relationship.
xref:Microsoft.Xrm.Sdk.Messages.UpdateRelationshipRequest	Updates an entity relationship.

See also

Customize Entity Relationship Metadata
Entity Relationship Eligibility
Entity Relationship Behavior

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