http://service.sap.com/utilities -> SAP for Utilities - Product Information -> SAP ERP for Utilities (IS-U) -> Billing&Invoicing -> Cookbooks&Guidelines
what you probably need is explained in billingserialswitches_e.pdf
http://service.sap.com/utilities -> SAP for Utilities - Product Information -> SAP ERP for Utilities (IS-U) -> Billing&Invoicing -> Cookbooks&Guidelines
what you probably need is explained in billingserialswitches_e.pdf