How To Fix CN747 - Maximum of & days copied as duration of activity &

SAP Error Message - Details

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 747

• Message text: Maximum of & days copied as duration of activity &

What causes this issue?

You want to adjust the duration of a network activity to the maximum
delivery time or replenishment lead time of all allocated material
components.

System Response

The system only calculates using the allocated material components that
have the indicator <ZH>Alignment finish date</> set. The maximum
duration comes from
the planned delivery time when the material components are procured
externally
the total replenishment lead time when the material components are
produced internally or the in-house production time if the total
replenishment lead time is not maintained in the material master

How to fix this error?

Make sure that the <ZH>Alignment finish date</> indicator on the
component detail screen of the activity is set for all material
components allocated to the activity.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CN747 - Maximum of & days copied as duration of activity & ?

  The SAP error message CN747 ("Maximum of & days copied as duration of activity &") typically occurs in the context of project management within SAP, particularly when dealing with network activities in Project System (PS) or when scheduling tasks. This error indicates that the duration of an activity being copied exceeds the maximum allowable limit set in the system.
  Cause:
  
  Duration Exceeds Limit: The primary cause of this error is that the duration of the activity being copied exceeds the maximum number of days allowed by the system configuration. This limit is often set to prevent excessively long durations that could complicate project scheduling and resource allocation.
  Configuration Settings: The maximum duration limit can be configured in the system settings, and it may vary based on organizational policies or project requirements.
  
  Solution:
  
  
  Check Configuration Settings: Review the configuration settings for maximum activity duration in the Project System. This can typically be found in the customizing settings under:
  
  SPRO ? Project System ? Structures ? Work Breakdown Structure ? Define Maximum Duration for Activities.
  Adjust the maximum duration limit if necessary, but ensure that this aligns with your organization's project management policies.
  
  
  
  Modify Activity Duration: If changing the configuration is not an option, consider modifying the duration of the activity you are trying to copy. You can either:
  
  Reduce the duration to fit within the allowed limit.
  Split the activity into multiple shorter activities if the work can be segmented.
  
  
  
  Consult Documentation: Review SAP documentation or help files related to project management and activity scheduling for additional insights on managing activity durations.
  
  
  User Training: Ensure that users involved in project planning are trained on the limitations and best practices for setting activity durations to avoid similar issues in the future.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this error or provide additional guidance on configuration settings.
  Project Management Best Practices: Familiarize yourself with best practices in project management to ensure that activity durations are realistic and manageable.
  Testing Changes: After making any changes to configuration or activity durations, conduct thorough testing to ensure that the changes do not adversely affect other project components.
  
  By addressing the cause of the CN747 error and implementing the suggested solutions, you should be able to resolve the issue and continue with your project planning activities in SAP.