How To Fix FF603 - Posting key missing for debit or credit postings

FF603 - Overview

• Message type: E = Error

• Message class: FF - FI Function Module Messages

• Message number: 603

• Message text: Posting key missing for debit or credit postings

What causes this issue?

Function module TAX_REP_CREATE_BI_FOR_PAYMENT was called up to carry
out a tax payable posting.
During a tax payable posting, taxes payable are transferred from tax
accounts to a tax payable account. Two posting keys should be
transferred to the function module for debit and credit postings.
However, this has not actually been done.

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

System Response

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FF603 - Posting key missing for debit or credit postings ?

  The SAP error message FF603 ("Posting key missing for debit or credit postings") typically occurs when there is an issue with the configuration of posting keys in the system. Posting keys are essential in SAP as they determine the type of transaction being processed (debit or credit) and the account types that can be posted to.
  
  Cause:
  
  Missing Posting Key Configuration: The posting key required for the transaction is not defined in the system.
  Incorrect Document Type: The document type being used may not be compatible with the posting key.
  Account Type Restrictions: The account type associated with the transaction may not allow the specified posting key.
  Transaction Type Issues: The transaction type may not be set up correctly to allow the posting key.
  User Authorization: The user may not have the necessary authorizations to use the specific posting key.
  
  
  Solution:
  
  
  Check Posting Key Configuration:
  
  Go to the transaction code OB15 (for defining posting keys).
  Verify that the required posting