What is posting key in SAP FI - Financial Accounting?

SAP Term: posting key

• Component: FI

• Component Name: Financial Accounting

• Description: A two-digit numerical key that determines the way line items are posted. This key determines several factors including the: Account type Type of posting debit or credit Layout of entry screens

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• Key Concepts: 
  Posting keys are used in SAP Financial Accounting (FI) to determine the type of account postings that can be made. They are used to control the debit/credit split of a transaction and to determine the account type that will be posted. Posting keys are assigned to each G/L account in the chart of accounts. 
  
  How to use it: 
  Posting keys are used when entering transactions into SAP FI. When entering a transaction, the user must select a posting key from a list of available posting keys. The posting key will determine the type of account that will be posted and the debit/credit split of the transaction. 
  
  Tips & Tricks: 
  When selecting a posting key, it is important to make sure that it is appropriate for the type of transaction being entered. For example, if you are entering an invoice, you should select a posting key that is designed for invoices. 
  
  Related Information: 
  Posting keys are part of the SAP FI configuration and can be customized by an SAP consultant or administrator. It is important to understand how posting keys work in order to properly configure them for your organization's needs.