How To Fix MPE_CM_EFFECTIVITY090 - Item category cannot be changed for existing line item of version BOM

SAP Error Message - Details

• Message type: E = Error

• Message class: MPE_CM_EFFECTIVITY - Message Class for Parameter Effectivity

• Message number: 090

• Message text: Item category cannot be changed for existing line item of version BOM

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message MPE_CM_EFFECTIVITY090 - Item category cannot be changed for existing line item of version BOM ?

  The SAP error message MPE_CM_EFFECTIVITY090 indicates that there is an issue with changing the item category for an existing line item in a versioned Bill of Materials (BOM). This typically occurs when you attempt to modify an item in a BOM that is already in use or has been defined with specific characteristics that do not allow for changes to the item category.
  Cause:
  
  Existing Line Item: The line item you are trying to change is already part of a versioned BOM, and SAP does not allow changes to the item category for existing items in this context.
  Versioning: The BOM is versioned, and the system enforces rules to maintain the integrity of the existing versions.
  Item Category Restrictions: Certain item categories have specific restrictions that prevent them from being changed once they are assigned to a BOM line item.
  
  Solution:
  
  Create a New Version: If you need to change the item category, consider creating a new version of the BOM. This allows you to make the necessary changes without affecting the existing BOM.
  
  Go to the BOM transaction (e.g., CS01 for creating a BOM) and create a new version.
  
  
  Delete and Recreate: If the item is not critical, you can delete the existing line item and recreate it with the desired item category. Be cautious with this approach as it may affect other dependent objects.
  Check Dependencies: Ensure that there are no dependencies or references to the existing line item that would prevent changes. Review the BOM structure and any related documents.
  Consult Documentation: Review SAP documentation or consult with your SAP support team for specific guidelines on handling BOM item categories and versioning.
  
  Related Information:
  
  BOM Management: Understanding how BOMs work in SAP, including versioning and item categories, is crucial for effective management.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance.
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), and CS03 (Display BOM) for managing BOMs effectively.
  User Authorizations: Ensure that you have the necessary authorizations to make changes to BOMs and that your changes comply with organizational policies.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to your SAP support team for further assistance.