An entity is the actual thing being advertised (product, hotel, restaurant, etc.). Entities with bids are referred to bidders in the Delivery + Collections API reference.

To get a list of all entities in an ad group, use Reports with the appropriate query parameters.

POST advertisers/{advertiserId}/entities/report will get you all the entities assigned to an advertiser.

Endpoints

Method	Path	Description
POST	member_groups/ {memberGroupId} /entities/{entityId} /bid_strength	This endpoint calculates a new bid strength with a given new bid for an entity.
POST	/member_groups /{memberGroupId} /advertisers /{advertiserId} /entity_registrations /initiate	This endpoint can be used to add bidders to an account.
POST	/member_groups /{memberGroupId} /advertisers /{advertiserId} /entity_registrations /failed /report	This endpoint returns a report for failed instances of attempting to add bidders to an account. Note: No body is necessary to run this endpoint.
DELETE	member_groups/{memberGroupId} /advertisers/{advertiserId} /entities	This endpoint deletes a list of entities from an advertiser