# All Key Codes

This screen displays all Key Codes.

Key Codes are simply aliases to an Offer Code, much like a nickname is an alias to a person's real name.
Key Codes are used when many Offer Codes need to be linked to a single Offer Code. This is typically used for catalog direct marketing and campaigns when a single Offer is advertised to large segmented customer list.
It is not practical to create hundreds or thousands of Offer Codes, each with the same benefit. It is also impossible to track the Offer's popularity within each customer segment on your Order Reports if you allowed all Customers to use only a single Offer Code.
TIP: Only the Key Codes should be published to each customer segment. The "master" Offer Codes should remain unpublished.

## Creating Key Codes

You can all your Key Codes quickly by importing your Key Codes. Click on "Import Key Codes" and following instructions. You can also create Key Codes one at a time by clicking "Create Key Code".

## Deleting Key Codes

Once your direct mail campaign and Offer has expired, you can delete all Key Codes associated with it. Click on "Delete All Key Codes".
NOTE: There is no undo, but if you used a Key Code import file to create your Key Codes in the first place, you can re-import them again to your Key Codes will be restored.