Automated Recurring Billing (ARB) is a convenient and easy-to-use tool for submitting and managing recurring, or subscription-based, transactions. ARB is a service found inside your Authorize.net account.  

4aGoodCause uses the ARB service to store and charge the credit cards of your monthly donors. If a donor enrolls as a monthly giver on your donation page, we automatically create a subscription for that donor in the ARB service. This subscription stores the payment information and charges the card each month. Charges made in the ARB service will be reflected in your 4aGoodCause reporting if you have successfully set up your Silent Post connection.  Those donations will have "ARB Donation" noted in the Gift Designation field. 

Learn more about the ARB service in these tutorial videos.