How To Fix CM123 - Multiple allocation not allowed (check selected allocations).

CM123 - Overview

• Message type: E = Error

• Message class: CM - Task list messages: Material component allocations

• Message number: 123

• Message text: Multiple allocation not allowed (check selected allocations).

What causes this issue?

During the consistency check, multiple allocations were found.
Multiple allocation is not allowed. It can occur due
to referenced operations or as a result of changes with a future key
date.

How to fix this error?

Change the allocations so as to achieve consistency.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM123 - Multiple allocation not allowed (check selected allocations). ?

  The SAP error message CM123 "Multiple allocation not allowed (check selected allocations)" typically occurs in the context of the SAP Controlling (CO) module, particularly when dealing with cost allocations or internal orders. This error indicates that the system has detected an attempt to perform a multiple allocation where it is not permitted.
  
  Cause:
  
  Incorrect Allocation Method: The allocation method you are trying to use may not support multiple allocations. For example, certain allocation types may only allow single allocations.
  Selection Criteria: The selection criteria for the allocations may have included multiple entries that are not compatible with the allocation method being used.
  
  Configuration Issues: There may be configuration settings in the controlling area or allocation structure that restrict multiple allocations.
  Data Entry Errors: There could be errors in the data entry, such as selecting multiple cost centers or internal orders that should not be allocated together.
  
  
  Solution:
  
  Review Allocation Method: Check the allocation method you are using