The Cybersource unmanaged package comes with two labels where you must enter the custom setting profile you created. These labels use relevant values while performing payment transactions.
To define custom labels
Go to Setup > Create > Custom Labels and click Edit for cyberSource_Active_CustomSetting.
Enter a short description.
In Value, enter the name for the hosted profile you created in the APTS CyberSource Profile Details custom setting. For example System Properties.
Click Save.
Now to go to Setup > Create > Custom Labels and click Edit for cyberSource_Active_Silent_CustomSetting.
In Value, enter the name for the checkout profile you created in the APTS CyberSource Profile Details custom setting. For example Silent Checkout Profile.