How To Fix /SCMTMS/PLN_VSR_OL459 - Cannot change assignments of capacity item &1; assignments are fixed

SAP Error Message - Details

• Message type: E = Error

• Message class: /SCMTMS/PLN_VSR_OL -

• Message number: 459

• Message text: Cannot change assignments of capacity item &1; assignments are fixed

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /SCMTMS/PLN_VSR_OL459 - Cannot change assignments of capacity item &1; assignments are fixed ?

  The SAP error message /SCMTMS/PLN_VSR_OL459 indicates that you are trying to change the assignments of a capacity item, but those assignments are currently fixed. This typically occurs in the context of SAP Transportation Management (TM) when dealing with capacity planning and resource assignments.
  Cause:
  
  Fixed Assignments: The capacity item you are trying to modify has fixed assignments, meaning that the system has locked these assignments to prevent changes. This can happen if the capacity item is already being used in a planning scenario or if it has been confirmed in a transportation order.
  Planning Status: The planning status of the capacity item may not allow for changes. For example, if the item is in a confirmed state, it may not be editable.
  Configuration Settings: There may be configuration settings in the system that enforce fixed assignments for certain capacity items.
  
  Solution:
  
  Check Assignment Status: Review the status of the capacity item to determine if it is indeed fixed. You can do this by navigating to the relevant transaction in SAP TM and checking the details of the capacity item.
  Release or Unblock Assignments: If the assignments are fixed due to a planning scenario, you may need to release or unblock them. This could involve changing the status of the planning scenario or the capacity item.
  Modify Planning Parameters: If the fixed assignments are due to configuration settings, you may need to adjust the planning parameters or settings in the system to allow for changes.
  Consult Documentation: Refer to the SAP documentation or help resources for specific guidance on managing capacity items and their assignments.
  Contact Support: If you are unable to resolve the issue, consider reaching out to your SAP support team or consulting with an SAP expert who can provide assistance based on your specific system configuration.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes in SAP TM, such as /SCMTMS/PLN for planning-related activities.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that could resolve the issue.
  User Roles and Permissions: Ensure that you have the necessary permissions to make changes to capacity items and their assignments.
  
  By following these steps, you should be able to identify the cause of the error and implement a solution to resolve it.