How To Fix CN862 - Maintain duration to calculate work

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 862

• Message text: Maintain duration to calculate work

Self-Explanatory Message

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To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CN862 - Maintain duration to calculate work ?

  The SAP error message CN862 ("Maintain duration to calculate work") typically occurs in the context of project management or network planning within the SAP system, particularly when dealing with activities in a project or network that require a duration to calculate the work involved.
  Cause:
  The error message CN862 is triggered when:
  
  Missing Duration: The activity or task in the project does not have a defined duration. In SAP, the duration is essential for calculating the work required for that activity.
  Incorrect Settings: The settings for the activity might not be configured correctly, leading to the system being unable to determine the necessary duration.
  Incomplete Data Entry: The user may not have completed all required fields in the activity or task definition.
  
  Solution:
  To resolve the CN862 error, you can take the following steps:
  
  
  Maintain Duration:
  
  Go to the relevant project or network activity in SAP.
  Ensure that the duration field is filled in with a valid value. This can usually be done in the "Basic Data" or "Scheduling" tab of the activity.
  Save the changes.
  
  
  
  Check Activity Settings:
  
  Verify that all necessary fields related to the activity are filled out correctly. This includes start and finish dates, as well as any dependencies that might affect the scheduling.
  
  
  
  Review Project Structure:
  
  Ensure that the project structure is correctly set up and that all activities are properly linked. Sometimes, missing links or dependencies can lead to issues with duration calculations.
  
  
  
  Consult Documentation:
  
  If you are unsure about the required fields or settings, refer to the SAP documentation or help files related to project management and network planning.
  
  
  
  User Authorization:
  
  Ensure that you have the necessary permissions to make changes to the project or network activities. Lack of authorization can sometimes prevent you from saving changes.
  
  
  
  Contact Support:
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting with an SAP expert for further assistance.
  
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like CJ20N (Project Builder) or CN22 (Change Network) to access and modify project or network activities.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues related to this error message.
  Training and Documentation: Familiarize yourself with SAP project management functionalities through training sessions or official SAP documentation to better understand how to manage project activities effectively.
  
  By following these steps, you should be able to resolve the CN862 error and ensure that your project activities are correctly configured for work calculation.