在网上收集到了如下几篇好的介绍文章，供自己以及同行们参考。
INVOIC IDoc processing of Intercompany billing (IV) | SAP Blogs
https://blogs.sap.com/2021/04/25/invoic-idoc-processing-of-intercompany-billing-iv/
Inter-Company Billing - Automatic Posting To Vendor Account (SAP-EDI) - ERP Operations - Community Wiki
https://wiki.scn.sap.com/wiki/pages/viewpage.action?pageId=47808864
How to set up intercompany billing - vendor invoice via EDI scenario at SD side - ERP SD - Community Wiki (sap.com)
https://wiki.scn.sap.com/wiki/display/SD/How+to+set+up+intercompany+billing+-+vendor+invoice+via+EDI+scenario+at+SD+side
还有一篇英文版PDF文档的链接，
https://erpdb.info/wp-content/uploads/2008/09/automatic-posting-to-vendor-account.pdf
https://blogs.sap.com/2014/01/25/important-intercompany-configuration-in-ar/