How To Fix MA288 - Parts of the planning hierarchy are locked by another user

MA288 - Overview

• Message type: E = Error

• Message class: MA - Sales and Operations Planning

• Message number: 288

• Message text: Parts of the planning hierarchy are locked by another user

What causes this issue?

When calculating the proportional factors, the system reads the
relevant part of the planning hierarchy. It then tries to lock the
affected planning objects so that the structure underlying the
proportional calculation cannot be changed while the proportional
factors are being calculated.
In this case, the attempt to lock an element of the planning hierarchy
tree has failed.

System Response

The proportional factors cannot be calculated.

How to fix this error?

Wait for five minutes and then try again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message MA288 - Parts of the planning hierarchy are locked by another user ?

  The SAP error message MA288, which states "Parts of the planning hierarchy are locked by another user," typically occurs in the context of planning activities within SAP, particularly in modules like SAP APO (Advanced Planning and Optimization) or SAP S/4HANA.
  
  Cause:
  This error message indicates that a user is trying to access or modify a planning hierarchy (such as a planning area or a planning book) that is currently locked by another user. This locking mechanism is in place to prevent data inconsistencies that could arise from simultaneous modifications by multiple users.
  
  Solution:
  To resolve the MA288 error, you can take the following steps:
  
  
  Identify the Locking User:
  
  Use transaction code SM12 to check for locks in the system. You can filter by the user ID or the object type to find out which user is holding the lock.
  
  
  
  Contact the Locking User:
  
  If possible, communicate with the user who has the lock to understand if they can