Class for Revenue Accounting Items 
The class for revenue accounting items determines the technical properties of a revenue accounting item. These technical properties include:
Basic fields delivered by SAP that you have added by selecting interface components
Customer-specific fields that you have added by selecting customer fields
Database tables, in which the system stores the revenue accounting items based on their status
Function modules (RFC-enabled) that receive revenue accounting items
Function modules that save the revenue accounting items in the appropriate database tables