Users with the required Permissions can delete Lookup fields where applicable. Users cannot delete system defined fields or options.
Steps to Delete a Lookup Field
Click Administration > Lookups. The Lookups screen displays as shown below.
Click on a Lookup for which to delete a Lookup Field.
NOTE: As an example, Delivery Modes was selected, and the Delivery Modes screen is shown below.
Select an item to delete, then click Delete. A verification message displays as shown below.
Click OK.