How To Fix DDLS197 - Type of case expression in selection list could not be determined

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 197

• Message text: Type of case expression in selection list could not be determined

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS197 - Type of case expression in selection list could not be determined ?

  The SAP error message DDLS197 ("Type of case expression in selection list could not be determined") typically occurs in ABAP when there is an issue with the CASE statement in your code. This error indicates that the ABAP compiler is unable to determine the data type of the expressions used in the CASE statement.
  Causes:
  
  Inconsistent Data Types: The expressions in the CASE statement may have different data types, making it impossible for the compiler to determine a common type.
  Uninitialized Variables: If the variables used in the CASE statement are not initialized or declared properly, it can lead to this error.
  Complex Expressions: If the expressions are too complex or involve different types of operations, the compiler may struggle to infer the type.
  Use of Non-Scalar Types: If you are using non-scalar types (like structures or internal tables) in the CASE statement, it can lead to this error.
  
  Solutions:
  
  
  Ensure Consistent Data Types: Make sure that