How To Fix F4809 - Enter posting key with account type D, K or S

SAP Error Message - Details

• Message type: E = Error

• Message class: F4 - Line items/balances/configuration

• Message number: 809

• Message text: Enter posting key with account type D, K or S

What causes this issue?

You have specified a posting key which is defined for neither customer,
nor vendor, nor G/L account postings.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message F4809 - Enter posting key with account type D, K or S ?

  The SAP error message F4809 "Enter posting key with account type D, K or S" typically occurs during the posting of financial transactions in SAP, particularly in the context of financial accounting (FI). This error indicates that the system expects a specific posting key that corresponds to the type of account being used in the transaction.
  Cause:
  The error arises when:
  
  The user is trying to post a transaction using an incorrect posting key that does not match the expected account type.
  The posting key entered does not correspond to the account type defined in the system (D for Debits, K for Credits, and S for Special G/L transactions).
  The configuration of the posting keys in the system may not be set up correctly.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check the Posting Key: Ensure that you are using the correct posting key for the type of account you are trying to post to. 
  
  D: Debit posting key (for asset accounts, expense accounts, etc.)
  K: Credit posting key (for liability accounts, income accounts, etc.)
  S: Special G/L transactions (for transactions that require special handling).
  
  
  
  Review Account Type: Verify the account type you are trying to post to. Make sure it matches the expected posting key. You can check the account type in the master data of the account.
  
  
  Configuration Check: If you have access to configuration settings, check the configuration of posting keys in the SAP system. Ensure that the posting keys are correctly defined and linked to the appropriate account types.
  
  
  Transaction Type: Ensure that the transaction type you are using is appropriate for the accounts involved. Some transactions may have specific requirements for posting keys.
  
  
  Consult Documentation: If you are unsure about the correct posting key or account type, refer to SAP documentation or consult with your SAP FI consultant for guidance.
  
  
  Testing: After making any changes, perform a test transaction to ensure that the error no longer occurs.
  
  
  Related Information:
  
  Posting Keys: Posting keys are two-digit numbers that determine the type of transaction being posted (debit or credit) and the type of account involved.
  Account Types: In SAP, accounts are categorized into different types (e.g., asset, liability, income, expense) which dictate how they behave in financial transactions.
  SAP Transaction Codes: Familiarize yourself with relevant transaction codes such as FB50 (General Ledger Account Document Entry) or F-02 (General Posting) to practice posting transactions.
  
  If the issue persists after following these steps, it may be necessary to involve your SAP support team or a consultant for further investigation.