On the Merchant Info tab you can set up credit card information to facilitate integration with third party verification software. You can either set up the location to inherit values from Global settings, or to override them.
To override these values:
Click the Override button. Then make your changes to the following.
Merchant Account Code - This code represents your identity with the vendor.
Vendor URL - The URL of your credit card vendor.
Transaction Key - The Transaction Key is a location-specific code for processing credit cards. If left blank, the system looks for it in the event configuration in Configuration Console.
Click Save to keep your changes.