How can I edit lookups?
On any of the Manage Lookups pages, you can edit the existing lookup codes of a lookup type or add new lookup codes. You can edit lookups using the following tasks in the Setup and Maintenance work area:
- 
            Manage Standard Lookups 
- 
            Manage Common Lookups 
- 
            Manage Set Enabled Lookups 
Each task contains a predefined set of lookup types that are classified and stored. Open a task to search and edit the required lookup. However, you may not be able to edit a lookup if its configuration level doesn't support editing.