1. From the management settings for the field’s object, go to Fields.
2. Click Del next to the name of the field.
3. When prompted, select the Yes, I want to delete the custom field checkbox to confirm, and click Delete. Deleted custom fields and their data are stored until your org permanently deletes them or 15 days has elapsed, whichever happens first. Until that time, you can restore the field and its data. Forinformation on restoring deleted custom fields and relationships, see Manage Deleted Custom Fields.