KnowledgeArticleVersionHistory | Object Reference for the Salesforce Platform

Knowledge__VersionHistory is derived from this object. To access this derived object, turn on field history tracking for Knowledge objects.

Supported Calls

describeSObjects(), getDeleted(), getUpdated(), query(), retrieve()

You can also enable delete() in API version 42.0 and later. See Enable delete of Field History and Field History Archive.

Special Access Rules

Knowledge must be enabled in your org. This object respects field, entity, and record-level security. You must have at least “Read” permission on the article type or the field to access its history. For data category security, Salesforce determines access based on the categorization of the online version of an article. If there’s no online version, then security is applied based on the archived version, followed by the security of the draft version.

Fields

Field Name	Details
DataType	Type picklist Properties Filter, Group, Restricted picklist, Sort Description The type of data that is tracked in the history table. This field is available in API version 50.0 and later.
EventType	Type picklist Properties Filter, Group, Restricted picklist, Sort Description The type of event that is tracked in the history table.
FieldName	Type picklist Properties Filter, Group, Nillable, Restricted picklist, Sort Description Name of the tracked field.
Language	Type picklist Properties Filter, Group, Restricted picklist, Sort Description The language that the article is written in, such as `French` or `Chinese (Traditional)`. Querying or searching articles in SOSL requires that you specify the Language field in the WHERE clause. The language must be the same for all article types.
NewValue	Type anyType Properties Nillable, Sort Description The new value of the field that was changed.
OldValue	Type anyType Properties Nillable, Sort Description The most recent value of the field before it was changed.
ParentId	Type reference Properties Filter, Group, Sort Description The ID of the article.
ParentSobjectType	Type picklist Properties Filter, Group, Restricted picklist, Sort Description The type of object that contains the field.
VersionId	Type reference Properties Filter, Group, Nillable, Sort Description The ID assigned to a version of the article. This is a polymorphic relationship field.
VersionNumber	Type int Properties Filter, Group, Sort Description The number assigned to a version of an article. This field is available in API version 24.0 and later.

Usage

Use this object to query events in the history of an article. For example, you can retrieve the number of edits a particular user has made to an article, how many times the article has been published, and so on.