How To Fix CN047 - Control key of superior activity is not changed

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 047

• Message text: Control key of superior activity is not changed

What causes this issue?

The subnetwork assignment was deleted. If the control key of the
superior activity was changed when creating a subnetwork, the control
key from profile &V1& is used. However, you have not maintained the
profile sufficiently. Therefore, the control key is not changed.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN047 - Control key of superior activity is not changed ?

  The SAP error message CN047 ("Control key of superior activity is not changed") typically occurs in the context of project management and activity planning within SAP's Project System (PS) module. This error indicates that you are trying to change the control key of a subordinate activity, but the control key of the superior (or parent) activity has not been changed, which is a requirement for the system to allow such a modification.
  Cause:
  
  Control Key Dependency: In SAP, the control key defines how an activity is processed, including its scheduling, costing, and execution. If you attempt to change the control key of a subordinate activity, the system expects that the control key of the superior activity must also be changed to maintain consistency.
  Hierarchy Structure: The error can arise when there is a hierarchical relationship between activities, and the system enforces rules to ensure that changes in the hierarchy are valid and logical.
  
  Solution:
  To resolve the CN047 error, you can follow these steps:
  
  
  Check the Superior Activity: Identify the superior activity of the one you are trying to change. You can do this by navigating to the activity in the project structure.
  
  
  Change the Control Key of the Superior Activity: If you need to change the control key of the subordinate activity, you must first change the control key of the superior activity to a compatible one. This can be done in the activity details screen.
  
  
  Save Changes: After making the necessary changes to the superior activity, attempt to change the control key of the subordinate activity again.
  
  
  Review Dependencies: Ensure that the control keys you are trying to set are compatible and that there are no other dependencies or restrictions in place that might prevent the change.
  
  
  Consult Documentation: If you are unsure about which control keys are compatible, refer to the SAP documentation or consult with your SAP administrator or project manager.
  
  
  Related Information:
  
  Control Keys: Control keys in SAP define the processing type of activities (e.g., whether they are manually scheduled, automatically scheduled, or if they involve external processing).
  Project Structure: Understanding the project structure and how activities are related is crucial for managing changes effectively.
  SAP Notes: Check for any relevant SAP Notes or updates that might address specific issues related to control keys and activity management.
  
  If the problem persists after following these steps, it may be beneficial to consult with your SAP support team or refer to SAP community forums for additional insights.