How To Fix CN671 - Last selected activity already reached

CN671 - Overview

• Message type: E = Error

• Message class: CN - Meldungen für Netzpläne

• Message number: 671

• Message text: Last selected activity already reached

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

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.

Unfortunately, there isn't any extra information in this error notice.

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CN671 - Details

• The SAP error message CN671: Last selected activity already reached typically occurs in the context of project management within SAP, particularly when working with network activities in the Project System (PS) module. This error indicates that the user is trying to perform an action on a network activity that has already been completed or is at its final stage.
  
  Cause:
  
  Activity Completion: The user is attempting to select or process an activity that has already been marked as completed.
  Incorrect Navigation: The user may be trying to navigate to an activity that is not available for further processing.
  System Configuration: There may be specific configurations or settings in the project that restrict further actions on completed activities.
  
  
  Solution:
  
  Check Activity Status: Verify the status of the activity in question. If it is marked as completed, you will not be able to select it for further processing.
  Review Project Structure: Ensure that you are navigating through the project