How To Fix F8134 - Specify a posting key on the debit and credit sides

SAP Error Message - Details

• Message type: E = Error

• Message class: F8 -

• Message number: 134

• Message text: Specify a posting key on the debit and credit sides

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message F8134 - Specify a posting key on the debit and credit sides ?

  The SAP error message F8134, "Specify a posting key on the debit and credit sides," typically occurs during the posting of financial documents in SAP, particularly in the context of financial accounting (FI). This error indicates that the system requires a posting key to be specified for both the debit and credit sides of a transaction, but one or both sides are missing this information.
  Cause:
  
  Missing Posting Key: The most common cause is that the user has not specified a posting key for either the debit or credit line item in the document.
  Incorrect Configuration: There may be an issue with the configuration of the posting keys in the system, leading to the inability to process the transaction correctly.
  User Input Error: The user may have inadvertently skipped entering the posting key or made a mistake while entering the transaction.
  
  Solution:
  
  Check Input Fields: Ensure that both the debit and credit line items have valid posting keys entered. Posting keys are essential for defining the type of transaction (e.g., whether it is a debit or credit).
  Review Document Structure: Make sure that the document structure is correct and that all required fields are filled out properly.
  Consult Configuration: If the issue persists, check the configuration of posting keys in the SAP system. This can be done by navigating to the relevant configuration settings in the SAP IMG (Implementation Guide).
  User Training: If the error is due to user input, consider providing additional training or documentation to help users understand how to correctly enter transactions in SAP.
  
  Related Information:
  
  Posting Keys: Posting keys are two-digit codes that determine the type of transaction being posted (e.g., debit or credit) and control the behavior of the line item (e.g., whether it allows for a reversal).
  Transaction Codes: Familiarize yourself with relevant transaction codes such as FB01 (Post Document), FB50 (G/L Account Document), or F-02 (General Posting) where this error might occur.
  SAP Documentation: Refer to SAP Help documentation for detailed information on posting keys and their configuration.
  Error Logs: Check the error logs or messages in the SAP system for additional context or related errors that may provide further insight into the issue.
  
  By ensuring that both sides of the transaction have the appropriate posting keys and reviewing the configuration, you should be able to resolve the F8134 error.