Object Reference for Salesforce and Force.com
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System Fields
The following fields are read-only fields found on most objects. These fields are automatically updated during API operations. For example, the ID field is automatically generated during a create operation and the LastModifiedDate is automatically updated during any operation on an object.
| Field | Field Type | Description |
|---|---|---|
| Id | ID | Globally unique string that identifies a record. For information on IDs, see ID Field Type. Because this field exists in every object, it is not listed in the field table for each object. Id fields have Defaulted on create and Filter access. |
| IsDeleted | boolean | Indicates whether the record has been moved to the Recycle Bin (true) or not (false). Because this field does not appear in all objects, it is listed in the field table for each object. |
| Audit Fields | ||
| CreatedById | reference | ID of the User who created this record. CreatedById fields have Defaulted on create and Filter access. |
| CreatedDate | dateTime | Date and time when this record was created. CreatedDate fields have Defaulted on create and Filter access. |
| LastModifiedById | reference | ID of the User who last updated this record. LastModifiedById fields have Defaulted on create and Filter access. |
| LastModifiedDate | dateTime | Date and time when this record was last modified by a user. LastModifiedDate fields have Defaulted on create and Filter access. |
| SystemModstamp | dateTime | Date and time when this record was last modified by a user or by an automated process (such as a trigger). SystemModstamp fields have Defaulted on create and Filter access. |
If you import data into Salesforce and need to set the value for an audit field, contact salesforce.com. Once salesforce.com enables this capability for your organization, you can set audit field values for the following objects: Account, CampaignMember, Case, CaseComment, Contact, FeedComment, FeedItem, Idea, IdeaComment, Lead, Opportunity, and Vote. The only audit field you cannot set a value for is systemModstamp.
For information on setting audit fields for custom objects, see Audit Fields for Custom Objects.
Not all standard objects have all audit fields. Check the Enterprise WSDL to verify which audit fields are available for a given object.
Parent Reference Fields
If an object has a relationship to a parent object, two fields are added:
- Parent_Name contains the object name of the parent. For example, Case has a Contact field that contains a reference to the contact parent of the case.
- Parent_NameId contains the ID of the parent. For example, Case has a ContactId field
that refers to the contact parent of the case. This field is used in SOQL relationship queries such as the following:
Even if the object can parent itself, these fields occur. For example, the Campaign object has a Campaign and CampaignId field for referencing the parent Campaign.