How To Fix KM866 - Posting key missing in account determination key &1

SAP Error Message - Details

• Message type: E = Error

• Message class: KM - Error messages for Profit Center Accounting

• Message number: 866

• Message text: Posting key missing in account determination key &1

What causes this issue?

You are using the functionality 'Balance Sheet Accounts in Profit
Centers'. No posting key could be found for account determination key
&V1&

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?

Enter posting keys for credit and debit postings for account
determination key &V1&.

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 KM866 - Posting key missing in account determination key &1 ?

  The SAP error message KM866, which states "Posting key missing in account determination key &1," typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with cost elements and account determination.
  Cause:
  This error usually arises when the system cannot find a valid posting key for a specific account determination key. The posting key is essential for determining how transactions are recorded in the financial accounting (FI) module. The reasons for this error can include:
  
  Missing Configuration: The account determination for the specific cost element or transaction type has not been properly configured in the system.
  Incorrect Posting Key: The posting key that is being referenced does not exist in the system or is not assigned to the relevant account determination key.
  Data Entry Errors: There may be a mistake in the data entry, such as using an incorrect cost element or transaction type.
  
  Solution:
  To resolve the KM866 error, you can follow these steps:
  
  
  Check Account Determination Configuration:
  
  Go to the configuration settings for account determination in the SAP system. This can typically be found under the following path:
  
  SPRO > Controlling > Cost Element Accounting > Master Data > Cost Elements > Define Account Determination.
  
  
  Ensure that the account determination key mentioned in the error message is correctly configured with the appropriate posting keys.
  
  
  
  Verify Posting Keys:
  
  Check the posting keys that are defined in the system. You can do this by navigating to:
  
  SPRO > Financial Accounting > General Ledger > Document > Document Entry > Define Posting Keys.
  
  
  Ensure that the posting key required for the transaction is available and correctly set up.
  
  
  
  Review Cost Element Settings:
  
  Ensure that the cost element being used is correctly defined and linked to the appropriate account determination key.
  
  
  
  Test with Different Data:
  
  If possible, try to replicate the issue with different data to see if the problem persists. This can help identify if the issue is data-specific.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or help resources for any additional insights related to the specific account determination key and its configuration.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the configuration and settings, consider reaching out to SAP support for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as OBYC (for account determination) and KA01 (for creating cost elements).
  SAP Notes: Check for any SAP Notes related to the KM866 error for specific patches or updates that may address known issues.
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, providing additional insights or solutions.
  
  By following these steps, you should be able to identify and resolve the cause of the KM866 error in your SAP system.