SAP ISU Billing – Introduction

ISU Billing is a functional area in SAP Utilities (or SAP IS-U, which supports utility and waste disposal companies) that helps the firm in performing Billing and Invoicing the customers. It takes various master data into consideration and helps in generating Bills and Invoices for the company.

What is a Bill?

A bill comprises various items like consumption, demand, fixed charges, rent, etc.

What is an Invoice?

An invoice comprises taxation and other related charges along with the bill and its constituents. We can say a bill is a subset of an invoice.

Invoice = Bill + Other charges

Introduction

ISU Billing can be performed in various ways such as Periodic (at regular intervals like weeks, months, or years), Interim (on-demand basis), Final (when a customer has completely moved out of the premise), etc.

Billing is performed at the Contract level and Invoicing is performed at the Contract Account level. If you have more than one premise, you can perform joint invoicing as well to generate a single Invoice for the customer.

Bill creation process

The process is followed as below:

1. A meter reading order is created to capture the meter readings. This results in generating a Bill order as well as a meter reading order.
2. Meter reading results are entered and verified. If there are any implausible (incorrect) reads, validation is performed by the respective team and plausible meter readings are updated.
3. Once the meter reads are validated successfully, Billing is performed on the Contract/Installation level.
4. Once billing is performed, the bill is validated for any type of Out sorting issues. Out sorting happens when a bill amount falls outside a prescribed valid range.
5. Once the out-sorted bill is corrected, an Invoice is generated and sent to the customer.