How To Fix CN441 - Milestone function indicator is not set

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 441

• Message text: Milestone function indicator is not set

What causes this issue?

You have maintained milestone functions to be executed, however, you
have not set the <LS>milestone function</> indicator. A milestone
function is only executed when this indicator is set.

System Response

INCLUDE 'NA_ALLG_NOFUNKTION' OBJECT DOKU ID TX

How to fix this error?

If you want a milestone function to be carried out in the network, set
the <LS>milestone function</> indicator on one of the following detail
screens:
milestone basic data in the network
<ZH>or</>
milestone functions in the network

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN441 - Milestone function indicator is not set ?

  The SAP error message CN441, which states "Milestone function indicator is not set," typically occurs in the context of project management and controlling within SAP, particularly when dealing with milestones in project structures.
  Cause:
  The error arises when you attempt to perform an action related to a milestone (such as planning, scheduling, or reporting) but the milestone function indicator has not been set for the relevant project element (like a WBS element or network activity). The milestone function indicator is a flag that indicates whether a particular project element is designated as a milestone.
  Solution:
  To resolve the CN441 error, you need to ensure that the milestone function indicator is properly set for the relevant project element. Here are the steps to do this:
  
  
  Access the Project Structure:
  
  Go to the relevant project in SAP (using transaction codes like CJ20N for Project Builder or CJ02 for changing WBS elements).
  
  
  
  Check the WBS Element or Network Activity:
  
  Navigate to the specific WBS element or network activity that is causing the error.
  
  
  
  Set the Milestone Function Indicator:
  
  In the details of the WBS element or network activity, look for the field related to the milestone function indicator. This is usually found in the "Basic Data" or "General Data" sections.
  Set the milestone function indicator to the appropriate value (usually a checkbox or dropdown option).
  
  
  
  Save Changes:
  
  After making the necessary changes, save the project structure.
  
  
  
  Re-attempt the Action:
  
  Once the milestone function indicator is set, try to perform the action that previously triggered the error.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  CJ20N: Project Builder
  CJ02: Change WBS Element
  CN22: Change Network
  CJ03: Display WBS Element
  
  
  
  Documentation:
  
  Refer to SAP Help documentation for detailed information on project management and milestone settings.
  
  
  
  User Roles:
  
  Ensure that you have the necessary authorizations to modify project structures and set milestone indicators.
  
  
  
  Consulting with Colleagues:
  
  If you are unsure about the correct settings or implications of changing the milestone function indicator, consult with your project manager or a colleague familiar with project management in SAP.
  
  
  
  By following these steps, you should be able to resolve the CN441 error and continue with your project management tasks in SAP.