Billing Simulation## Definition
Billing Simulation is an SAP Utilities function that allows users to emulate the billing process for a specific installation or contract without writing actual, irreversible financial documents to the database. It utilizes real meter readings or estimated consumption to test how newly constructed rate models or master data changes will structurally impact a customer’s final charge.
Business Purpose and Architecture
The primary business purpose of a Billing Simulation is validation. When utility companies create new, deregulated rate models or restructure their existing Billing Schema, they use simulations to verify accuracy and ensure profitability before releasing the rates to live production. Architecturally, the Simulation leverages the exact same Universal Billing Engine and variant programs as a live run, meaning it acts as a perfect mathematical twin of real-world billing, offering completely reliable previews of line items and gross charges.