How To Fix CM406 - Material components from referenced operation sets cannot be deleted.

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 406

• Message text: Material components from referenced operation sets cannot be deleted.

What causes this issue?

The operation for which you want to delete the material component
allocation is referenced from an operation set. You cannot delete
component allocations to referenced operations in the routing.

How to fix this error?

If you want to delete the component allocation, you can do this in the
reference operation set. Note, however, that this change is valid for
all routings containing a reference to the operation set.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CM406 - Material components from referenced operation sets cannot be deleted. ?

  The SAP error message CM406 ("Material components from referenced operation sets cannot be deleted") typically occurs in the context of production planning and control, particularly when dealing with production orders or routing operations. This error indicates that you are trying to delete material components that are linked to operation sets that are already referenced in some way, such as in a production order or a routing.
  Cause:
  
  Referenced Operation Sets: The material components you are trying to delete are part of an operation set that is already being used in a production order or another process.
  Dependencies: There may be dependencies or links to other objects in the system that prevent the deletion of these components.
  Status of the Order: The production order may be in a status that does not allow changes, such as being released or already confirmed.
  
  Solution:
  
  Check References: Before attempting to delete the material components, check if they are referenced in any production orders or routing. You can do this by reviewing the production order or routing details.
  Change Status: If the production order is in a status that prevents changes, you may need to change the status of the order (e.g., set it to "teardown" or "closed") before you can delete the components.
  Remove Dependencies: If there are dependencies, you may need to remove or adjust them before you can delete the material components.
  Use Alternative Methods: If deletion is not possible, consider using alternative methods such as marking the components as inactive or adjusting the bill of materials (BOM) instead of deleting them outright.
  Consult Documentation: Refer to SAP documentation or help resources for specific instructions related to your version of SAP and the context in which you are working.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CO02 (Change Production Order), CS02 (Change BOM), and CA02 (Change Routing) to manage production orders and BOMs effectively.
  SAP Notes: Check for any SAP Notes related to this error message for additional guidance or patches that may address the issue.
  User Permissions: Ensure that you have the necessary permissions to make changes to production orders, BOMs, and routings, as restrictions may also lead to this error.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP support team or a functional consultant who specializes in production planning and control.