IW493 - Operation &1 with subcontracting: Reassignment not possible

SAP Error Message - Details

• Message type: E = Error

• Message class: IW - Order Processing

• Message number: 493

• Message text: Operation &1 with subcontracting: Reassignment not possible

What causes this issue?

You want to reassign a material from one order operation to another.
This is not possible, however, because the operation &V1& is specified
as an externally processed operation with subcontracting. Since a
purchase requisition for the subcontracted work has already been
created, you cannot reassign this material to a different order
operation.

System Response

Since the material is assigned to an externally processed operation and
the subcontracting indicator is set, the material is not reassigned to a
different operation.

How to fix this error?

You can delete the material from the current operation and assign it to
a different operation.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message IW493 - Operation &1 with subcontracting: Reassignment not possible ?

  The SAP error message IW493 ("Operation &1 with subcontracting: Reassignment not possible") typically occurs in the context of production orders or maintenance orders when there is an attempt to reassign an operation that is linked to subcontracting. This error indicates that the system does not allow the reassignment of the specified operation due to certain constraints.
  Causes:
  
  Subcontracting Operations: The operation in question is defined as a subcontracting operation, which means that it is linked to an external vendor for processing. Reassigning such operations is restricted.
  Order Status: The production or maintenance order may be in a status that does not allow changes, such as being released or completed.
  Dependencies: There may be dependencies or relationships with other operations or components that prevent reassignment.
  Configuration Settings: The system configuration may restrict the reassignment of subcontracting operations.
  
  Solutions:
  
  Check Operation Type: Verify if the operation is indeed a subcontracting operation. If it is, consider whether it is necessary to reassign it or if the operation can be left as is.
  Change Order Status: If the order is in a status that prevents changes, you may need to change the status of the order (e.g., set it to "Created" or "In Process") before attempting to reassign the operation.
  Review Dependencies: Check for any dependencies or relationships with other operations or components that might be causing the restriction. Resolve any conflicts before attempting reassignment.
  Consult Configuration: If the issue persists, consult with your SAP configuration team to review the settings related to subcontracting operations. There may be specific configurations that need to be adjusted to allow reassignment.
  Use Alternative Methods: If reassignment is not possible, consider alternative methods such as creating a new operation or modifying the existing operation instead of reassignment.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as IW31 (Create Order), IW32 (Change Order), and IW33 (Display Order) to manage orders effectively.
  Documentation: Refer to SAP documentation or help files for detailed information on subcontracting processes and order management.
  SAP Notes: Check for any relevant SAP Notes that may address specific issues or provide patches related to this error message.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to your SAP support team or consult with an SAP expert for further assistance.