How To Fix DDLS173 - CASE without WHEN or THEN keyword

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 173

• Message text: CASE without WHEN or THEN keyword

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS173 - CASE without WHEN or THEN keyword ?

  The SAP error message DDLS173 indicates that there is a syntax issue in a CASE statement within an ABAP program or SQL query. Specifically, the error message "CASE without WHEN or THEN keyword" suggests that the CASE statement is not properly structured, as it lacks the necessary WHEN and THEN clauses that define the conditions and corresponding results.
  Cause:
  The error typically arises from one of the following issues:
  
  Incomplete CASE Statement: The CASE statement is missing the required WHEN and THEN clauses.
  Syntax Error: There may be a syntax error in the way the CASE statement is written, such as missing keywords or incorrect formatting.
  Improper Nesting: If the CASE statement is nested within another statement, it may not be properly closed or formatted.
  
  Solution:
  To resolve the DDLS173 error, you should:
  
  
  Check the Syntax: Review the CASE statement to ensure it follows the correct syntax. A typical CASE statement should look like this:
  CASE <expression>
      WHEN <value1> THEN <result1>
      WHEN <value2> THEN <result2>
      ...
      ELSE <default_result>
  ENDCASE.
  Or, for a simple CASE statement:
  CASE
      WHEN <condition1> THEN <result1>
      WHEN <condition2> THEN <result2>
      ...
      ELSE <default_result>
  ENDCASE.
  
  
  Add Missing Keywords: If you find that the WHEN or THEN keywords are missing, add them to the statement as needed.
  
  
  Test the Query: After making the necessary corrections, test the query or program to ensure that it executes without errors.
  
  
  Review Documentation: If you are unsure about the syntax, refer to the SAP documentation or ABAP programming guidelines for more information on using CASE statements.
  
  
  Related Information:
  
  ABAP Documentation: The official SAP documentation provides detailed information on the syntax and usage of CASE statements in ABAP.
  Debugging Tools: Use the ABAP debugger to step through the code and identify where the error occurs.
  Community Forums: SAP Community and other forums can be helpful for finding similar issues and solutions shared by other developers.
  
  By following these steps, you should be able to resolve the DDLS173 error and ensure that your CASE statement is correctly implemented.