How To Fix DDLS208 - CASE for column &/(&): Function & does not supply a valid data type

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 208

• Message text: CASE for column &/(&): Function & does not supply a valid data type

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DDLS208 - CASE for column &/(&): Function & does not supply a valid data type ?

  The SAP error message DDLS208 indicates that there is an issue with a column definition in a database table or view where a function is being used, but the function does not return a valid data type. This error typically occurs during the definition of a database object in the Data Dictionary (DDLS) when the system is unable to determine a valid data type for a column based on the function specified.
  Cause:
  
  Invalid Function Return Type: The function used in the column definition does not return a data type that is acceptable for the column. This could be due to the function returning a complex type or a type that is not supported in the context of the database table.
  Function Not Defined Properly: The function may not be defined correctly in the system, or it may not be accessible in the context where it is being called.
  Database Compatibility: The function might be compatible with one database system but not with another, especially if you are working in a multi-database environment.
  
  Solution:
  
  Check Function Definition: Verify the function being used in the column definition. Ensure that it is defined correctly and that it returns a valid data type (e.g., CHAR, INT, DECIMAL, etc.) that is compatible with the column.
  Modify Column Definition: If the function is not returning a valid type, consider modifying the column definition to use a different function or a static data type instead.
  Test Function Independently: Execute the function independently in the database to see what data type it returns. This can help identify if the function is the issue.
  Consult Documentation: Review the SAP documentation or the database documentation for the specific function to ensure it is being used correctly.
  Check for Updates: Ensure that your SAP system is up to date, as there may be patches or updates that address issues with specific functions or data types.
  
  Related Information:
  
  Data Dictionary (DDLS): The Data Dictionary in SAP is a central repository that contains metadata about the data structures in the system, including tables, views, and data elements.
  Function Modules: In SAP, function modules are reusable pieces of code that can be called from various programs. Ensure that the function module is correctly defined and accessible.
  Database Compatibility: If you are using a specific database (like HANA, Oracle, etc.), ensure that the functions and data types you are using are compatible with that database.
  
  If the issue persists after checking the above points, consider reaching out to your SAP support team or consulting the SAP community for further assistance.