Note: This release is in preview. Features described here don’t become generally available until the latest general availability date that Salesforce announces for this release. Before then, and where features are noted as beta, pilot, or developer preview, we can’t guarantee general availability within any particular time frame or at all. Make your purchase decisions only on the basis of generally available products and features.

ActivityFieldHistory

Represents a change in a field value for a tracked object or field. This object is a big object. This object is available in API version 55.0 and later.

This guide only lists certain information for each object. For more information, including descriptions of the fields, see ActivityFieldHistory in the Object Reference for the Salesforce Platform.

Fields

Field Name	Field Label	Type	Length	Precision	Scale
`ActivityId`	Task or Event ID	reference	18
`ChangedById`	User ID	reference	18
`ChangedDate`	Changed Date	datetime
`CreatedById`	Created By ID	reference	18
`CreatedDate`	Created Date	datetime
`DataType`	Data Type	picklist	255
`FieldName`	Field	string	120
`Id`	Entity History ID	id	18
`IsDataAvailable`	Data Available	boolean
`LastModifiedById`	Last Modified By ID	reference	18
`LastModifiedDate`	Last Modified Date	datetime
`NewValueDateTime`	New Date	datetime
`NewValueNumber`	New Number Val	double		18	0
`NewValueText`	New String Val	string	4000
`OldValueDateTime`	Old Date	datetime
`OldValueNumber`	Old Number Val	double		18	0
`OldValueText`	Old String Val	string	4000
`Operation`	Change Operation	picklist	255
`SystemModstamp`	System Modstamp	datetime

Salesforce Field Reference Guide

ActivityFieldHistory

Fields