ActivityHistory

This read-only object contains information about each activity related to an object.

Supported Calls

describeGlobal(), describeSObject(), and describeSObjects()

Fields

Field	Field Type	Field Properties	Description
ActivityDate	date	Filter Nillable	Indicates one of the following: For a task, the due date of a task. For an event, indicates the due date of the event only if IsAllDayEvent is set to `true`. This field has a timestamp that is always set to midnight in the Coordinated Universal Time (UTC) time zone. The timestamp is not relevant; do not attempt to alter it in order to accommodate time zone differences.
ActivityType	picklist	Filter Nillable	One of the following values: Call, Meeting, or Other.
CallDisposition	string	Filter Nillable	Represents the result of a given call, for example, “we'll call back,” or “call unsuccessful.” Limit is 255 characters.
CallDurationInSeconds	int	Filter Nillable	Duration of the call in seconds.
CallObject	string	Filter Nillable	Name of a call center. Limit is 255 characters.
CallType	picklist	Filter Nillable	The type of call being answered: Inbound, Internal, or Outbound.
Description	textarea	Nillable	Description of the task or event.
DurationInMinutes	int	Filter Nillable	Length of the event or task.
IsAllDayEvent	boolean	Defaulted on create Filter	If `true`, the activity is an event and the ActivityDate is used to define the date of the event. If `false`, the activity may be a task or an event.
IsClosed	boolean	Defaulted on create Filter	For tasks only, indicates whether the task was completed (`true`) or not (`false`). This field is set indirectly by setting the Status field--each picklist value has a corresponding IsClosed value.
IsDeleted	boolean	Defaulted on create Filter	Indicates whether the object has been moved to the Recycle Bin (`true`) or not (`false`). Label is Deleted.
IsOnlineMeeting	boolean	Defaulted on create Filter	Indicated whether the activity represents an online meeting (`true`) or not (`false`). Note This field is not available in API versions 17.0 and later.
IsTask	boolean	Defaulted on create Filter	If `true`, the activity is a task. If `false`, it is an event.
IsVisibleInSelfService	boolean	Defaulted on create Filter	If `true`, the activity can be viewed in the self-service portal.
Location	string	Filter Nillable	If an event, the location of the event. If not, the value is null.
OwnerId	reference	Filter Nillable	ID of the user who owns the task or event.
Priority	picklist	Filter Nillable	If a task, the importance of the task, such as high, normal, or low.
Status	picklist	Filter Nillable	For tasks, the current status of the task, for example In Progress or Complete. Each predefined Status field sets a value for IsClosed. To obtain picklist values, you can `query()` on the TaskStatus object.
Subject	combobox	Filter Nillable	Subject line of the task or event.
WhatId	reference	Filter Nillable	ID of the related object (Account, Campaign, Case, Opportunity, or custom object).
WhoId	reference	Filter Nillable	ID of the related Contact or Lead. If WhoId refers to a lead, then the WhatId field must be empty.

Usage

This object helps you replicate the related list functionality of the Salesforce.com user interface. To use this object, use the following procedure:

Optionally, issue a describe call against the object whose activities you wish to query, to get a suggestion of the correct SOQL to use.
Issue a SOQL relationship query with a main clause that references the object, and an inner clause that references the activity history, for example:
```
SELECT (SELECT ActivityDate, Description from ActivityHistories) FROM Account WHERE Name Like 'XYZ%'
```
or
```
SELECT (SELECT ActivityDate, Description from OpenActivities) FROM Account WHERE Name Like 'XYZ%'
```

The Salesforce.com user interface enforces sharing rules, filtering out related list items that a user does not have permission to see.

In order to prevent performance issues while still providing the related list functionality, there are some restrictions on users who do not have “View All Data” permission. Such users must comply with the following restrictions:

In the main clause of the relationship query, you can reference only one record. For example, you cannot filter on all records where the account name starts with A, but must reference a single account record.
You cannot use WHERE clauses.
You must specify a limit to the number of rows returned, less than 500.
You must sort on ActivityDate and LastModifiedDate, descending order: ORDER BY ActivityDate DESC, LastModifiedDate DESC

You cannot use query() directly on this object.