Revenue Management - Business needs the revenue forecast forecast for next 5 years

Summary:

Business needs to forecast monthly revenue for next 5 years for all Revenue Contracts in RMCS. How do we accurately forecast the monthly revenue amount for future 5 years? Is there a table or existing report that we can refer to? We reviewed the satisfaction events but they don't contain amount details.

Business is expecting the revenue forecasting to be the industry standard requirement and should be available in the Product. If we get details about ERP records then we are open to create a new BI Publisher report as well.

Please note that we have only one GL period open at a time with next three future periods as future enterable.