Systems and methods of processing business related data arising from multiple revenue sources (e.g., sales, subscriptions, professional services, vendors, etc.). In some embodiments, the inventive system and methods enable a more flexible and efficient approach to identifying revenue source events (mediation), pricing those events (typically as part of a rating process), and subsequently leveraging those “ratable events” in the billing and revenue recognition subsystems according to configurable rules and schedules. Data regarding those charges or other aspects of a ratable event may then be used and processed by multiple sub-systems that are part of operating a business; such sub-systems may include one or more of ERP, CRM, HCM, financial, accounting, taxation, or other business-related system or function.