Posting Key is a two-digit numeric code used to define the type of transaction or action that is being performed on a document. It specifies whether the entry is a debit or credit, as well as the account type (e.g., vendor, customer, general ledger) involved in the transaction.
Tcode for posting key - OB41
Key Points:
Debit or Credit: The posting key distinguishes between debit and credit entries. For example, posting key 40 is typically used for debits in a customer account, and posting key 50 is used for credits.
Account Type: It helps to determine what kind of account is being posted to (e.g., customer, vendor, bank, general ledger, etc.).
Transaction Type: It can also specify the type of transaction, like an invoice or payment.
Common Posting Keys:
01: Debit entry to a General Ledger account.
40: Debit entry for a customer account.
50: Credit entry for a customer account.
31: Credit entry for a vendor account.
21: Debit entry for a bank account.
