How To Fix /PLMI/ECN_SP002 - Cannot collapse object type BOM for change number &1

SAP Error Message - Details

• Message type: E = Error

• Message class: /PLMI/ECN_SP -

• Message number: 002

• Message text: Cannot collapse object type BOM for change number &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /PLMI/ECN_SP002 - Cannot collapse object type BOM for change number &1 ?

  The SAP error message /PLMI/ECN_SP002 Cannot collapse object type BOM for change number &1 typically occurs in the context of Engineering Change Management (ECM) when trying to collapse a Bill of Materials (BOM) for a specific change number. This error indicates that there is an issue with the BOM or the change number that is preventing the operation from being completed.
  Causes:
  
  Invalid Change Number: The change number specified may not be valid or may not exist in the system.
  BOM Status: The BOM might be in a status that does not allow it to be collapsed. For example, it could be locked or in use by another process.
  Dependencies: There may be dependencies or references to the BOM that prevent it from being collapsed.
  Authorization Issues: The user may not have the necessary authorizations to perform the collapse operation on the BOM.
  Configuration Issues: There could be configuration settings in the system that are preventing the operation.
  
  Solutions:
  
  Verify Change Number: Check if the change number you are using is valid and exists in the system. You can do this by navigating to the relevant transaction for change management.
  Check BOM Status: Ensure that the BOM is not locked or in a status that prevents it from being collapsed. You can check the status of the BOM in the BOM management transaction (CS02 or CS03).
  Review Dependencies: Look for any dependencies or references to the BOM that might be preventing the collapse. This could include other BOMs, production orders, or change documents.
  Authorization Check: Ensure that you have the necessary authorizations to perform the collapse operation. You may need to consult with your SAP security team if you suspect authorization issues.
  Consult Documentation: Review SAP documentation or notes related to the specific error message for any additional troubleshooting steps or known issues.
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP support for further assistance.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CS01 (Create BOM), CS02 (Change BOM), CS03 (Display BOM), and the change management transactions.
  SAP Notes: Search for SAP Notes related to this error message in the SAP Support Portal, as there may be specific patches or updates that address the issue.
  User Forums: Check SAP community forums or user groups for discussions related to this error, as other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution.