Trackfield History

You can select certain fields to track and display the field history in the History related list of an object.

The field history data is retained for up to 18 months.

Changes to fields with more than 255 characters are tracked as edited, and their old and new values are not recorded.

Tracked field values are not automatically translated; they display in the language in which they were made.

Changes to custom field labels that have been translated via the Translation Workbench are shown in the locale of the user viewing the History related list.

Changes to date fields, number fields, and standard fields are shown in the locale of the user viewing the History related list. For example, a date change to August 5, 2012 shows as 8/5/2012 for a user with the English (United States) locale, and as 5/8/2012 for a user with the English (United Kingdom) locale.

If a trigger causes a change on an object the current user doesn't have permission to edit, that change is not tracked because field history honors the permissions of the current user.