How To Fix CN028 - Activities are not within time frame of WBS elements

CN028 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 028

• Message text: Activities are not within time frame of WBS elements

What causes this issue?

The activity dates do not lie within the basic dates of the WBS element.
You cannot save.

System Response

INCLUDE 'NA_ALLG_NOVERARBEITUNG' OBJECT DOKU ID TX

How to fix this error?

Adjust the dates accordingly.

Error message extract from SAP system. Copyright SAP SE.

CN028 - Details

• The SAP error message CN028 ("Activities are not within time frame of WBS elements") typically occurs when you are trying to assign activities to a Work Breakdown Structure (WBS) element, but the dates of the activities do not fall within the start and finish dates of the WBS element. This can happen in project management scenarios where the scheduling of tasks is critical.
  
  Cause:
  
  Date Mismatch: The start or finish date of the activity is outside the defined time frame of the WBS element.
  WBS Element Dates: The WBS element may have been defined with specific start and end dates that do not encompass the activity dates.
  Project Structure Changes: Changes in the project structure or timeline may have led to discrepancies between the WBS and the activities.
  Incorrect Activity Dates: The dates entered for the activity may be incorrect or not aligned with the project plan.
  
  
  Solution:
  
  Check Activity Dates: Review the start and finish dates