How To Fix 37556 - Delete the name & of the OK_CODE field first

SAP Error Message - Details

• Message type: E = Error

• Message class: 37 - Screen Painter

• Message number: 556

• Message text: Delete the name & of the OK_CODE field first

What causes this issue?

You tried to convert the screen to an include screen (subscreen).
However, the OK_CODE element of the screen already has a name.
The OK_CODE field is not available in a subscreen. Instead, function
codes are passed back to the OK_CODE field of the main screen. If you
used the name of the OK_CODE field in the modules of the subscreen, it
would refer to an undefined value.

System Response

The system cannot convert the screen into a subscreen.

How to fix this error?

In the element list, delete the name of the OK_CODE field (by
overwriting it with spaces). Check as well whether you have used this
name in the screen modules to evaluate the OK_CODE, and change the
program logic accordingly. You can then return to the screen attributes
screen and repeat the operation.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message 37556 - Delete the name & of the OK_CODE field first ?

  The SAP error message "37556: Delete the name & of the OK_CODE field first" typically occurs in the context of screen programming (dynpro) in SAP ABAP. This error indicates that there is an issue with the OK_CODE field, which is used to capture user actions (like button clicks) on a screen.
  Cause:
  The error arises when there is an attempt to assign a name to the OK_CODE field that is not allowed. The OK_CODE field is a special field in SAP screens that is used to determine the action to be taken when a user interacts with the screen. If you try to assign a name to the OK_CODE field or if there are conflicting definitions, this error will be triggered.
  Solution:
  To resolve this error, you need to ensure that the OK_CODE field is correctly defined and that no other field is using the same name. Here are the steps to fix the issue:
  
  
  Check the Screen Definition:
  
  Open the screen in the Screen Painter (transaction SE80 or SE41).
  Look for the OK_CODE field in the screen's field list.
  
  
  
  Remove Any Incorrect Naming:
  
  Ensure that the OK_CODE field is named correctly. It should typically be named OK_CODE or OK_CODE_1, etc., depending on your screen's context.
  If you have assigned a different name to the OK_CODE field, remove that name and revert it to the standard naming convention.
  
  
  
  Check for Duplicate Fields:
  
  Ensure that there are no other fields on the screen that are using the same name as the OK_CODE field. Each field on the screen must have a unique name.
  
  
  
  Activate the Screen:
  
  After making the necessary changes, activate the screen to apply the changes.
  
  
  
  Test the Screen:
  
  Run the transaction or program that uses the screen to ensure that the error no longer occurs.
  
  
  
  Related Information:
  
  OK_CODE Field: The OK_CODE field is a standard field in SAP that captures user commands. It is usually defined in the screen's PBO (Process Before Output) and PAI (Process After Input) modules.
  Screen Programming: Understanding how to work with screens in SAP ABAP is crucial for developing user interfaces. Familiarize yourself with the concepts of screen attributes, field definitions, and event handling.
  SAP Documentation: For more detailed information, refer to the SAP Help Portal or the ABAP documentation related to screen programming.
  
  By following these steps, you should be able to resolve the error message 37556 and ensure that your SAP screen functions correctly.