How To Fix CJ318 - Last selected object already displayed

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 318

• Message text: Last selected object already displayed

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 CJ318 - Last selected object already displayed ?

  The SAP error message CJ318 ("Last selected object already displayed") typically occurs in the context of project management within SAP, particularly when working with project structures in transaction codes like CJ20N (Project Builder) or CJ03 (Display Work Breakdown Structure).
  Cause:
  This error message is triggered when a user attempts to display a project or work breakdown structure (WBS) element that is already open in the session. SAP does not allow the same object to be displayed multiple times in the same session to prevent confusion and maintain data integrity.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Close the Existing Object: If you have the object already open in another window or tab, close that instance before trying to open it again.
  
  
  Use a Different Session: If you need to view the same object again, you can open a new session in SAP (using the transaction code /n followed by the transaction code you want to use) and then try to access the object.
  
  
  Check for Multiple Instances: Ensure that you do not have multiple instances of the same transaction open. You can check your open sessions by using the transaction code SM04 to see all active sessions.
  
  
  Refresh the Session: Sometimes, simply refreshing the session or logging out and back in can resolve temporary glitches.
  
  
  Use Different Object: If you are trying to access a related object, consider navigating to a different WBS element or project that is not currently displayed.
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as CJ20N (Project Builder), CJ03 (Display WBS), and CJ02 (Change WBS) to manage your projects effectively.
  SAP Notes: Check SAP Notes for any updates or patches related to this error message, as there may be specific fixes or enhancements provided by SAP.
  User Training: Ensure that users are trained on how to navigate project structures in SAP to minimize the occurrence of this error.
  
  If the problem persists after trying these solutions, it may be beneficial to consult with your SAP support team or refer to SAP documentation for further assistance.