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