How To Fix FMPP031 - Only one changeable ledger allowed

SAP Error Message - Details

• Message type: E = Error

• Message class: FMPP - Planning processor

• Message number: 031

• Message text: Only one changeable ledger allowed

What causes this issue?

You are using a number of changeable elements (key figures) that are
defined for different ledgers. Changeable key figures are only permitted
in a layout if they use the same ledger.

System Response

This layout is not permitted.

How to fix this error?

Only use one ledger in all changeable columns. Either switch the key
figures with the different ledger to a display column, or use the same
ledger for all key figures.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FMPP031 - Only one changeable ledger allowed ?

  The SAP error message FMPP031: Only one changeable ledger allowed typically occurs in the context of Financial Accounting (FI) and is related to the configuration of ledgers in the system. This error indicates that the system has detected multiple changeable ledgers, which is not permitted.
  Cause:
  
  Multiple Changeable Ledgers: The primary cause of this error is that the system has been configured with more than one changeable ledger. In SAP, only one ledger can be designated as changeable for a particular company code or accounting area.
  Configuration Issues: This can happen due to incorrect configuration in the Financial Accounting settings, particularly in the ledger settings.
  Data Migration or Upgrade Issues: If there has been a recent data migration or system upgrade, it may have inadvertently created multiple changeable ledgers.
  
  Solution:
  To resolve the FMPP031 error, you can follow these steps:
  
  
  Check Ledger Configuration:
  
  Go to the SAP Customizing Implementation Guide (SPRO).
  Navigate to Financial Accounting (New) > General Ledger Accounting (New) > Ledgers > Define Ledgers.
  Review the configuration of ledgers to ensure that only one ledger is marked as changeable.
  
  
  
  Adjust Ledger Settings:
  
  If you find multiple ledgers marked as changeable, you will need to adjust the settings. You can either change the status of the additional ledgers to "non-changeable" or remove them if they are not needed.
  
  
  
  Consult Documentation:
  
  Review SAP documentation or notes related to ledger configuration to ensure compliance with best practices.
  
  
  
  Testing:
  
  After making changes, perform testing to ensure that the error no longer occurs and that the system behaves as expected.
  
  
  
  Seek Help from SAP Support:
  
  If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They can provide guidance based on your specific system configuration.
  
  
  
  Related Information:
  
  Changeable Ledger: A changeable ledger allows for adjustments and changes to be made after the initial posting. This is typically used in scenarios where adjustments are necessary for reporting or compliance.
  Non-Changeable Ledger: A non-changeable ledger is locked for changes after postings are made, ensuring data integrity and compliance with accounting standards.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on ledger configuration.
  
  By following these steps, you should be able to resolve the FMPP031 error and ensure that your ledger configuration is compliant with SAP's requirements.