S4 Finance: Ledgers & Ledger Groups | SAP Blogshttps://blogs.sap.com/2018/04/04/ledgers-ledger-groups/
Extension Ledgers in S/4 HANA | SAP Blogshttps://blogs.sap.com/2019/01/15/extension-ledgers-in-s4-hana/
Inventory Accounting for Universal Parallel Accounting in SAP S/4HANA Cloud 2105 | SAP Blogshttps://blogs.sap.com/2021/05/25/inventory-accounting-for-universal-parallel-accounting-in-sap-s-4hana-cloud-2105/