Before you can send requests for Internet Commerce Suite (ICS) services, you must create a security key for your CyberSource merchant ID. Use this key to replace the placeholder value for TRANSACTION_KEY in the code samples.
Important: You must use separate transaction keys for the test and production environments.
On the left navigation pane, click the Payment Configuration icon.
Click Key Management. The Key Management page appears.
In the Search toolbar, select the Merchant ID for which you want to create a key.
Click Generate Key. The Create Key page appears.
Select the type of key that you want to generate.
Click Next Step.
Select a key type, and generate a new key.
Click Submit. The Key Management page appears.
Important: Be sure to store the test and production environment transaction keys in different locations. Be careful not to overwrite a key in the wrong directory.