How To Fix /PLMU/PPE_CMP_UI021 - PSM structure cannot be changed. There are variants in this structure.

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMU/PPE_CMP_UI -

• Message number: 021

• Message text: PSM structure cannot be changed. There are variants in this structure.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMU/PPE_CMP_UI021 - PSM structure cannot be changed. There are variants in this structure. ?

  The SAP error message /PLMU/PPE_CMP_UI021 PSM structure cannot be changed. There are variants in this structure typically occurs in the context of the SAP Product Lifecycle Management (PLM) module, particularly when dealing with Product Structure Management (PSM). This error indicates that you are trying to make changes to a PSM structure that has existing variants, which is not allowed.
  Cause:
  
  Existing Variants: The primary cause of this error is that the PSM structure you are trying to modify has one or more variants associated with it. Variants are used to manage different configurations of a product structure, and changes to the base structure are restricted when variants exist.
  Data Integrity: SAP enforces this restriction to maintain data integrity and ensure that all variants remain consistent with the base structure.
  
  Solution:
  To resolve this error, you can consider the following approaches:
  
  
  Remove Variants: If possible, remove or deactivate the existing variants associated with the PSM structure before attempting to make changes. This may involve:
  
  Deleting the variants if they are no longer needed.
  Deactivating the variants if you want to keep them for future use.
  
  
  
  Create a New Structure: If the existing variants are necessary and cannot be removed, consider creating a new PSM structure that does not have any variants. You can then replicate the necessary elements from the original structure.
  
  
  Consult Documentation: Review the SAP documentation or help files related to PSM and variants to understand the implications of modifying structures with existing variants.
  
  
  Check Authorizations: Ensure that you have the necessary authorizations to make changes to the PSM structure. Sometimes, authorization issues can lead to unexpected error messages.
  
  
  Contact SAP Support: If you are unable to resolve the issue through the above methods, consider reaching out to SAP support for assistance. They may provide insights specific to your system configuration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional context.
  Transaction Codes: Familiarize yourself with transaction codes related to PSM, such as CST1 (for creating structures) or CST2 (for changing structures).
  Training and Documentation: Consider training sessions or documentation on PSM and variant management to better understand how to work with these structures in SAP.
  
  By following these steps, you should be able to address the error and proceed with your work in SAP PLM.