How To Fix CN863 - Enter units when calculating work or duration

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 863

• Message text: Enter units when calculating work or duration

What causes this issue?

The appropriate units must be maintained so that the computer can
calculate the work or the duration.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

Maintain the unit for work or duration.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN863 - Enter units when calculating work or duration ?

  The SAP error message CN863 ("Enter units when calculating work or duration") typically occurs in the context of project management within SAP, particularly when dealing with network activities in the Project System (PS) module. This error indicates that the system requires you to specify units for either work or duration when you are trying to perform calculations related to project activities.
  Cause:
  
  Missing Unit Specification: The error usually arises when you attempt to calculate work or duration without specifying the units (e.g., hours, days) for the activity.
  Incorrect Configuration: There may be a configuration issue in the project settings or the network activity settings that does not allow for proper unit entry.
  Data Entry Error: Users may have overlooked entering the necessary units in the relevant fields.
  
  Solution:
  
  Enter Units: Go to the relevant transaction (e.g., CN21 for creating a network, CN22 for changing a network) and ensure that you have entered the units for work or duration in the appropriate fields.
  Check Activity Details: Review the details of the network activity to ensure that all required fields, including units for work and duration, are filled out correctly.
  Configuration Review: If the issue persists, check the configuration settings in the Project System to ensure that the unit of measure settings are correctly defined.
  Consult Documentation: Refer to SAP documentation or help files for specific guidance on entering units in the context of your project activities.
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CN21 (Create Network), CN22 (Change Network), and CN03 (Display Network) to navigate the project management module effectively.
  User Roles and Authorizations: Ensure that you have the necessary permissions to make changes to project activities and that your user role is correctly set up in the system.
  SAP Notes: Check for any SAP Notes related to this error message, as they may provide additional insights or patches that address known issues.
  Training and Support: If you are new to SAP or the Project System module, consider seeking training or support from your organization’s SAP team or consulting with SAP experts.
  
  By following these steps, you should be able to resolve the CN863 error and proceed with your project management tasks in SAP.