How To Fix DDLS239 - CASE (DEFAULT): Maximum data type cannot be determined (&,&) (&,&)

SAP Error Message - Details

• Message type: E = Error

• Message class: DDLS - For DDL source handling

• Message number: 239

• Message text: CASE (DEFAULT): Maximum data type cannot be determined (&,&) (&,&)

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 DDLS239 - CASE (DEFAULT): Maximum data type cannot be determined (&,&) (&,&) ?

  The SAP error message DDLS239 indicates that the system is unable to determine the maximum data type for a certain field or structure in a database table or view. This typically occurs during the definition or modification of database objects in the Data Dictionary (DDIC) when the system encounters ambiguity regarding the data types involved.
  Cause:
  
  Ambiguous Data Types: The error often arises when there are conflicting definitions or when the system cannot infer the maximum length or type of a field due to multiple possible definitions.
  Inconsistent Data Definitions: If there are inconsistencies in the data types defined in the database or in the ABAP Dictionary, the system may not be able to resolve which data type to use.
  Database Compatibility Issues: Sometimes, the issue can stem from differences in how various database systems handle data types, especially if you are using a non-SAP database.
  
  Solution:
  
  Check Data Definitions: Review the data definitions for the fields or structures involved. Ensure that there are no conflicting definitions or ambiguous types.
  Adjust Data Types: If you find that there are multiple definitions for the same field, standardize them to a single definition that is clear and unambiguous.
  Use Explicit Data Types: When defining fields, use explicit data types and lengths to avoid ambiguity. For example, instead of using a generic type, specify the exact type and length.
  Database Compatibility: If you are using a non-SAP database, ensure that the data types used in your SAP system are compatible with the database. You may need to adjust the data types accordingly.
  Check for Updates: Ensure that your SAP system is up to date with the latest patches and updates, as this may resolve known issues related to data type handling.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or fixes related to this error message. SAP frequently releases notes that address specific error messages and provide guidance on how to resolve them.
  Data Dictionary (SE11): Use transaction SE11 to examine the data dictionary objects involved in the error. This can help you identify where the ambiguity lies.
  ABAP Development: If you are an ABAP developer, review the code that interacts with the database objects to ensure that it is correctly handling data types.
  Testing: After making changes, test the affected functionality thoroughly to ensure that the issue is resolved and that no new issues have been introduced.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.