First thing is to request CyberSource to change the account to enable subscriptions. There are three type of subscriptions they provide. Following are the documents that explain the complete process & features.
CyberSource Subscription Payments service - http://apps.cybersource.com/library/documentation/sbc/SB_Sub_Payments_UG/html/
CyberSource Business Center Reporting - http://apps.cybersource.com/library/documentation/sbc/SB_Reporting_UG/html/
