How To Fix UJK_EXCEPTION050 - Invalid when/endwhen - &1 &2

SAP Error Message - Details

• Message type: E = Error

• Message class: UJK_EXCEPTION -

• Message number: 050

• Message text: Invalid when/endwhen - &1 &2

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message UJK_EXCEPTION050 - Invalid when/endwhen - &1 &2 ?

  The SAP error message UJK_EXCEPTION050 with the description "Invalid when/endwhen - &1 &2" typically occurs in the context of the SAP system when there is an issue with the syntax or logic in a program or configuration that uses conditional statements. This error is often related to the use of the WHEN and ENDWHEN statements in ABAP (Advanced Business Application Programming).
  Cause:
  
  Syntax Error: The most common cause is a syntax error in the ABAP code where the WHEN and ENDWHEN statements are not properly structured.
  Logical Errors: There may be a logical error where the conditions specified in the WHEN statement do not match the expected values or types.
  Missing or Extra Statements: There could be missing WHEN statements or an extra ENDWHEN that does not correspond to a WHEN.
  Incorrect Data Types: The data types being compared in the WHEN statement may not be compatible.
  
  Solution:
  
  Check Syntax: Review the ABAP code for proper syntax. Ensure that every WHEN has a corresponding ENDWHEN and that they are correctly nested.
  Validate Conditions: Ensure that the conditions specified in the WHEN statements are valid and that the variables being compared are of compatible types.
  Debugging: Use the ABAP debugger to step through the code and identify where the error occurs. This can help pinpoint the exact line causing the issue.
  Review Documentation: Consult the SAP documentation for the correct usage of WHEN and ENDWHEN statements to ensure compliance with best practices.
  Test Changes: After making corrections, test the program to ensure that the error is resolved and that the logic behaves as expected.
  
  Related Information:
  
  ABAP Documentation: Refer to the official SAP ABAP documentation for detailed information on control structures, including WHEN and ENDWHEN.
  SAP Community: Engage with the SAP Community forums where developers share similar issues and solutions.
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  
  If you continue to experience issues after following these steps, consider reaching out to your SAP support team or consulting with an experienced ABAP developer for further assistance.