How To Fix BRF193 - No valid WHEN case in expression &1 of CASE &2

SAP Error Message - Details

• Message type: E = Error

• Message class: BRF - Messages for Business Rule Framework

• Message number: 193

• Message text: No valid WHEN case in expression &1 of CASE &2

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message BRF193 - No valid WHEN case in expression &1 of CASE &2 ?

  The SAP error message BRF193 indicates that there is no valid "WHEN" case in a Business Rule Framework (BRF) expression. This typically occurs when the conditions defined in the CASE statement do not match any of the provided WHEN cases, leading to a situation where the system cannot determine a valid outcome.
  Cause:
  
  No Matching Conditions: The conditions specified in the WHEN clauses do not match the input data being evaluated.
  Incorrect Logic: The logic defined in the CASE expression may be flawed, leading to scenarios where no WHEN case is satisfied.
  Data Issues: The input data might be missing or incorrect, causing the evaluation to fail.
  Configuration Errors: There may be issues in the configuration of the BRF rules or expressions that lead to this error.
  
  Solution:
  
  Review the CASE Expression: Check the CASE expression to ensure that all WHEN cases are correctly defined and that they logically cover all possible scenarios.
  Validate Input Data: Ensure that the input data being passed to the BRF expression is correct and complete. This includes checking for null values or unexpected data types.
  Add a Default Case: If applicable, consider adding a default case (using the ELSE clause) to handle situations where no WHEN case matches. This can prevent the error from occurring.
  Debugging: Use the debugging tools available in SAP to trace the execution of the BRF rules and identify where the logic fails.
  Consult Documentation: Review the BRF documentation for guidance on how to properly structure CASE expressions and WHEN clauses.
  
  Related Information:
  
  BRF+ Documentation: SAP provides extensive documentation on the Business Rule Framework, which can help in understanding how to define rules and expressions correctly.
  SAP Notes: Check for any relevant SAP Notes that might address known issues or provide additional guidance on this error message.
  Community Forums: Engage with SAP community forums or support channels where other users may have encountered and resolved similar issues.
  
  By following these steps, you should be able to identify the root cause of the BRF193 error and implement a solution to resolve it.