How To Fix DT656 - Technical settings make no sense - > are not generated

SAP Error Message - Details

• Message type: E = Error

• Message class: DT - Table activation (incl. indexes)

• Message number: 656

• Message text: Technical settings make no sense - > are not generated

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message DT656 - Technical settings make no sense - > are not generated ?

  The SAP error message DT656 ("Technical settings make no sense - > are not generated") typically occurs during the process of generating database objects for a table or view in the Data Dictionary (DDIC). This error indicates that the technical settings defined for the table are inconsistent or invalid, preventing the generation of the necessary database objects.
  Causes:
  
  Invalid Technical Settings: The technical settings for the table (like data class, size category, buffering, etc.) may not be compatible with the table's structure or intended use.
  Missing or Incorrect Parameters: Certain parameters required for the technical settings might be missing or incorrectly defined.
  Database-Specific Constraints: The settings may not comply with the constraints or requirements of the underlying database system.
  Inconsistent Data Types: The data types defined for the fields in the table may not align with the technical settings.
  
  Solutions:
  
  
  Review Technical Settings:
  
  Go to the Data Dictionary (transaction SE11) and check the technical settings of the table.
  Ensure that the data class, size category, and buffering settings are appropriate for the table's intended use.
  
  
  
  Adjust Data Class and Size Category:
  
  Make sure that the data class is suitable for the type of data being stored (e.g., master data, transaction data).
  Verify that the size category is appropriate for the expected volume of data.
  
  
  
  Check Field Definitions:
  
  Review the field definitions in the table to ensure that the data types and lengths are correctly defined and compatible with the technical settings.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific version of SAP you are using for any known issues or additional guidance.
  
  
  
  Recreate the Table:
  
  If the issue persists, consider recreating the table with the correct settings from scratch, ensuring that all parameters are correctly defined.
  
  
  
  Transport Requests:
  
  If the table is part of a transport request, ensure that the transport is correctly configured and that there are no inconsistencies in the transport environment.
  
  
  
  Related Information:
  
  Transaction Codes: SE11 (Data Dictionary), SE14 (Database Utility), SE14 (Table Maintenance).
  SAP Notes: Check SAP Notes for any specific issues related to your version of SAP that might provide additional insights or patches.
  Database Documentation: Review the documentation for the specific database you are using (e.g., HANA, Oracle, SQL Server) for any constraints or requirements regarding table definitions.
  
  If you continue to experience issues after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.