How To Fix FMPP029 - Only one changeable version allowed

FMPP029 - Overview

• Message type: E = Error

• Message class: FMPP - Planning processor

• Message number: 029

• Message text: Only one changeable version allowed

What causes this issue?

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

System Response

This layout is not permitted.

How to fix this error?

Only use one version in all changeable columns. Either switch the key
figures with the different version to a display column, or use the same
version 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 FMPP029 - Only one changeable version allowed ?

  The SAP error message FMPP029: "Only one changeable version allowed" typically occurs in the context of SAP's Flexible Planning or similar planning scenarios where multiple versions of a plan are being managed. This error indicates that the system is configured to allow only one version of a planning object to be changeable at a time.
  
  Cause:
  
  Multiple Changeable Versions: The error arises when there is an attempt to create or modify a second changeable version while one already exists. SAP restricts this to maintain data integrity and avoid conflicts.
  Configuration Settings: The system settings may be configured to allow only one active changeable version for a particular planning area or object.
  User Actions: A user may inadvertently try to create or change a version that is not allowed due to existing configurations.
  
  
  Solution:
  
  Check Existing Versions: Review the existing versions in the planning area to identify if there is already a changeable version. You can do