How To Fix CN_CNIS_MSG023 - All nodes are already shown

SAP Error Message - Details

• Message type: E = Error

• Message class: CN_CNIS_MSG - Message class for Package CN_CNIS

• Message number: 023

• Message text: All nodes are already shown

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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Smart SAP Assistant

• What is the cause and solution for SAP error message CN_CNIS_MSG023 - All nodes are already shown ?

  The SAP error message CN_CNIS_MSG023: "All nodes are already shown" typically occurs in the context of the SAP Project System (PS) or when working with hierarchical data structures, such as Work Breakdown Structures (WBS) or network activities. This message indicates that the system is trying to expand or display nodes in a hierarchy that are already fully expanded or displayed.
  Cause:
  
  Hierarchy Already Expanded: The most common cause of this error is that the user is attempting to expand a node in a hierarchy that has already been fully expanded. In other words, there are no additional child nodes to display.
  User Action: The error may occur due to user actions, such as clicking on a node that has already been expanded or trying to refresh the view unnecessarily.
  System Configuration: In some cases, it could be related to specific configurations or settings in the SAP system that affect how hierarchies are displayed.
  
  Solution:
  
  Check Node Status: Verify the status of the node you are trying to expand. If it is already fully expanded, there is no further action needed.
  Refresh the View: Sometimes, simply refreshing the view or navigating away and back can resolve display issues.
  User Training: Ensure that users are trained on how to navigate the hierarchy properly to avoid unnecessary clicks on already expanded nodes.
  System Updates: If the issue persists and seems to be a bug, check for any available updates or patches for your SAP system that might address this issue.
  Consult Documentation: Refer to SAP documentation or help resources for specific guidance related to the version of SAP you are using.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or fixes related to this error message. You can search the SAP Support Portal for relevant notes.
  Transaction Codes: Familiarize yourself with transaction codes related to project management and hierarchy display, such as CJ20N (Project Builder) or CN41 (Network Overview).
  User Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the problem continues after trying the above solutions, it may be beneficial to reach out to your SAP support team for further assistance.