Within SAP Financial Accounting, general ledger accounts are posted to using SAP Posting Keys. Each line item requires an SAP posting key which controls various aspects of how the particular line item will post. This tutorial will take a look at posting keys, examine SAP posting key configuration, and review a sample posting to point out how they are used within the system: https://sap-certification.info/fi/free-training/sap-posting-key-configuration/