How To Fix 37178 - The OK_CODE field cannot be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 178

• Message text: The OK_CODE field cannot be deleted

What causes this issue?

You wanted to delete an element from the element list, but the cursor
was placed on the OK_CODE element. You cannot edit this field in the
usual way.

How to fix this error?

Place the cursor on a normal screen element.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 37178 - The OK_CODE field cannot be deleted ?

  The SAP error message 37178, "The OK_CODE field cannot be deleted," typically occurs in the context of SAP ABAP programming, particularly when dealing with screen programming or dialog programming. The OK_CODE field is a special field used in SAP to capture user actions (like button clicks) and is essential for the processing of user inputs in screens.
  Cause:
  The error arises when there is an attempt to delete or modify the OK_CODE field in a way that is not permitted. This can happen in the following scenarios:
  
  Screen Modification: If you are trying to delete the OK_CODE field from a screen (e.g., in a screen painter), the system will not allow it because it is a reserved field.
  Program Logic: If there is logic in your ABAP program that attempts to manipulate the OK_CODE field incorrectly, it can trigger this error.
  Field Declaration: If the OK_CODE field is not declared properly in the program or screen, it may lead to this error.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Do Not Delete OK_CODE: Ensure that you do not attempt to delete the OK_CODE field from your screen or program. It is a critical field for handling user actions.
  
  
  Check Screen Attributes: If you are using the Screen Painter, ensure that the OK_CODE field is included in the screen's flow logic and is not being inadvertently removed or modified.
  
  
  Review Program Logic: Check your ABAP code to ensure that you are not trying to delete or modify the OK_CODE field. It should be treated as a standard field that captures user actions.
  
  
  Field Declaration: Ensure that the OK_CODE field is declared correctly in your program. It should typically be declared as follows:
  DATA: ok_code TYPE sy-ucomm.
  
  
  Use of OK_CODE: Make sure you are using the OK_CODE field correctly in your program logic, especially in the PAI (Process After Input) module to handle user commands.
  
  
  Related Information:
  
  OK_CODE Field: The OK_CODE field is a standard field in SAP that captures the command entered by the user (like pressing a button). It is usually processed in the PAI event of a screen.
  SAP Documentation: Refer to SAP's official documentation or help resources for more information on screen programming and the use of OK_CODE.
  Debugging: If the issue persists, consider using the debugger to trace the program execution and identify where the error is being triggered.
  
  By following these guidelines, you should be able to resolve the error message 37178 effectively.