To enable the Sage Payments gateway:

1. In the AspDotNetStorefront admin console, go to Configuration > Site Setup Wizard.
   
   
2. In the Payment Gateway section, click the configure link next to the Sage Payments entry.
   
   
3. Enter the values you obtained from Sage Payments for the Merchant ID and Merchant Key.
    
   
   
4. Click Save and Close.
   
   
5. Finally, click the radio button next to Sage Payments and then click the Save button.