ED144 - A subscreen modification may only be edited in the fullscreen

SAP Error Message - Details

• Message type: E = Error

• Message class: ED - ABAP/4 Editor messages

• Message number: 144

• Message text: A subscreen modification may only be edited in the fullscreen

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 ED144 - A subscreen modification may only be edited in the fullscreen ?

  The SAP error message ED144, which states "A subscreen modification may only be edited in the fullscreen," typically occurs when you are trying to modify a subscreen in a way that is not allowed in the current context (e.g., in a dialog box or a smaller screen). This error is related to the way SAP handles screen modifications and the limitations imposed on subscreens.
  Cause:
  
  Context of Modification: The error arises when you attempt to edit a subscreen while in a non-fullscreen mode. SAP requires that modifications to subscreens be done in fullscreen to ensure that all elements are properly displayed and can be edited without layout issues.
  Screen Configuration: The screen you are working on may not be configured to allow subscreen modifications in the current mode.
  Development Environment: You might be using a development environment or transaction that does not support editing subscreens in the current view.
  
  Solution:
  
  Switch to Fullscreen Mode: To resolve this error, switch to fullscreen mode. You can usually do this by selecting the appropriate option in the SAP GUI or using the keyboard shortcut (often F11).
  Check Screen Configuration: Ensure that the screen you are working on is configured correctly to allow for subscreen modifications. This may involve checking the screen attributes in the Screen Painter.
  Use the Correct Transaction: Make sure you are using the correct transaction or development environment that supports editing subscreens. For example, use the Screen Painter (SE80) or the appropriate transaction for screen modifications.
  Review Documentation: If you are unsure about the process, refer to SAP documentation or guides related to screen modifications and subscreen handling.
  
  Related Information:
  
  SAP GUI: Familiarize yourself with the SAP GUI functionalities, including how to navigate between fullscreen and other modes.
  Screen Painter (SE80): This is the tool used for screen modifications in SAP. Understanding how to use it effectively can help avoid such errors.
  SAP Notes: Check for any relevant SAP Notes that might address specific issues or provide additional guidance on screen modifications.
  Development Guidelines: Follow best practices and guidelines for SAP development, especially when working with screens and subscreens.
  
  If the problem persists after trying these solutions, consider reaching out to your SAP support team or consulting with a developer who has experience with SAP screen modifications.