When you install a Jira product or plugin, some fields that are needed by that product or plugin are created and locked. These fields appear on the custom fields screen as . For example, an SLA field is created when you install Jira Service Management.

You can't configure a locked custom field. You can only add the locked custom field to a screen and view the field details including applied contexts and associated screens. 

To view the custom field contexts and associated screens: 

  1. Select > Issues.
  2. Under FIELDS, click Custom fields.
  3. Find the locked custom field and click  > View field information. Alternatively, you can click a field's screens or contexts link to view the locked field's details.

To add the locked custom field to a screen, see Add a custom field to a screen.