Why can't I locate records I know are there? Why, using the same search criteria, are my search results different from those of my colleague?
If a user does not have permission to view (Display) a record, it won't be listed in search results.
Why does this Attachment Field display as "Restricted"?
If the Summary Data in an attachment field has been replaced with Restricted, the current user does not have permission to view the attached record.
If the user sorts on the attachment field or includes the attachment field in a report, the field will display without any data.
Removing Edit permission to a record
Users can remove their own Edit permission to a record, but will not be able to turn it back on again. Only another user with Edit permission to that record will be able to reapply the Edit permission.