Salesforce Object Types

In the Salesforce Platform, an object type used to refer to whether an object was standard or custom. A standard object has a schema determined by Salesforce. A custom object has a schema determined or created by you. However, as the platform has continued to evolve, there are now many more types of objects.

The objects in the table are grouped by how objects are identified and accessed in Salesforce. These include objects that are visible via your org or an API, even if they are used for internal purposes.

Suffix	Object Type	Object Group
__b	Big object	High Scale
__c	Custom object	Common
__ChangeEvent	Custom Object Change Event	Common
__chn	PlatformEventChannel	Common
__cio	Calculated insight object	High Scale
__dg	Data graph	High Scale
__DataCategorySelection	Knowledge__DataCategorySelection	Common
__dlm	Data Model Object (DMOs used for queries have this extension)	High Scale
__dlo	Data Lake Object	High Scale
__dmo	Data Model Object	High Scale
__dso	Data source object	High Scale
__e	Platform event	Common
__Feed	Knowledge article feed or custom object feed	Common
__hd	Historical data	Common
__History	Field History Tracking for custom objects	Common
_hst	A historical field for a custom report type.	Common
__ka	Knowledge article	Common
__kav	Knowledge article version	Common
__latitude__s	Geolocation custom field with latitude coordinates	Common
__longitude__s	Geolocation custom field with longitude coordinates	Common
__mdt	Custom metadata type	Common
__pc	Custom person account field	Common
__pr	Person account relationship field	Common
__r	Custom relationship field as used in a SOQL query to traverse the relationship	Common
__Share	Custom object sharing object	Common
__Tag	Salesforce tags	Common
__ViewStat	KnowledgeArticleViewStat	Common
__VoteStat	KnowledgeArticleVoteStat	Common
__x	External object	Common
__xo	Salesforce-to-Salesforce (S2S) spoke/proxy object	Common
ChangeEvent	Standard object change event	Common
Feed	Standard object feed	Common

Identifying an Object Type

You can identify an object type by its developer API name. The developer API name is a unique identifier with a standard suffix that indicates the type. You can see platform objects in the Object Manager, along with their suffix. Object Manager shows the object type.

Many different types of Data Cloud objects share the same suffix. To determine the type of a Data Cloud object, view it in Data Cloud Data Explorer and filter by the object type.

Accessing an Object

Access to an object type is determined by the products and features you’re licensed for and relevant user in object permissions. In some cases, you need permissions in multiple clouds to access objects for a feature. For example, you need permission from Data Cloud and your Sales Cloud org to access Data Cloud objects for Data Cloud-powered features in Sales Cloud. The security model for an org is different from the security model of Data Cloud, because objects are stored differently.