How To Fix CJ808 - Mouse pointer is not on a column heading

SAP Error Message - Details

• Message type: E = Error

• Message class: CJ - Project master data and structure

• Message number: 808

• Message text: Mouse pointer is not on a column heading

What causes this issue?

You are attempting to change an individual column heading back to the
standard heading. To do this, you must first position the mouse on the
appropriate column heading.

How to fix this error?

Position the mouse on the column heading that you want to change back
to the standard, and then select <LS>Undo</> again.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CJ808 - Mouse pointer is not on a column heading ?

  The SAP error message CJ808, which states "Mouse pointer is not on a column heading," typically occurs in the context of the SAP Project System (PS) module when users attempt to perform actions that require the mouse pointer to be positioned over a specific column header in a table or report.
  Cause:
  The error is caused by the user attempting to execute a function (like sorting, filtering, or displaying details) that requires the mouse pointer to be directly over a column header. If the pointer is not positioned correctly, SAP cannot determine which column the action should apply to, resulting in the error message.
  Solution:
  To resolve the CJ808 error, follow these steps:
  
  
  Position the Mouse Pointer Correctly: Ensure that your mouse pointer is directly over the column header of the table or report you are trying to interact with. This is crucial for the system to recognize the intended action.
  
  
  Check for Active Elements: Make sure that the table or report is active and that you are not clicking on a blank area or a non-interactive part of the screen.
  
  
  Refresh the Screen: Sometimes, refreshing the screen or reloading the report can help. You can do this by pressing the F5 key or using the refresh button in the SAP GUI.
  
  
  Use Keyboard Shortcuts: If you are having trouble with the mouse, consider using keyboard shortcuts to navigate through the columns and perform actions.
  
  
  Consult Documentation: If the issue persists, refer to SAP documentation or help resources for further guidance on the specific transaction or report you are using.
  
  
  Contact Support: If none of the above solutions work, consider reaching out to your SAP support team or consulting with a colleague who has experience with the specific module or transaction.
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to the specific transaction or module you are using.
  User Training: Ensure that users are trained on how to properly interact with SAP interfaces, including the importance of mouse positioning.
  System Updates: Ensure that your SAP system is up to date, as updates may resolve bugs or issues related to user interface interactions.
  
  By following these steps, you should be able to resolve the CJ808 error and continue working within the SAP system.