How To Fix CPWB157 - A referenced operation cannot be changed

CPWB157 - Overview

• Message type: E = Error

• Message class: CPWB - General Workbench Messages

• Message number: 157

• Message text: A referenced operation cannot be changed

What causes this issue?

you want to change a referenced operation. Referenced operations cannot
be changed in the task list (for example, routing) in which they are
referenced.

System Response

Your changes cannot take effect.

How to fix this error?

Change the operation in the reference (for example reference operation
set), which is already in your worklist.

Error message extract from SAP system. Copyright SAP SE.

CPWB157 - Details

• The SAP error message CPWB157 ("A referenced operation cannot be changed") typically occurs in the context of production planning and control, particularly when working with production orders or routing operations in the SAP system. This error indicates that you are trying to modify an operation that is referenced by another object, such as a production order, and the system does not allow this change due to data integrity constraints.
  
  Cause:
  
  Referenced Operation: The operation you are trying to change is already linked to a production order or another object that prevents modifications.
  Status of the Order: The production order may be in a status that does not allow changes (e.g., released, in process, or completed).
  Dependencies: There may be dependencies or relationships with other operations or orders that restrict changes to the referenced operation.
  
  
  Solution:
  
  Check Order Status: Verify the status of the production order or the object that references the operation. If it is in