How To Fix AXT_GEN126 - Cannot determine extract structure of data source &1

SAP Error Message - Details

• Message type: E = Error

• Message class: AXT_GEN - Generation framework

• Message number: 126

• Message text: Cannot determine extract structure of data source &1

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message AXT_GEN126 - Cannot determine extract structure of data source &1 ?

  The SAP error message AXT_GEN126, which states "Cannot determine extract structure of data source &1," typically occurs in the context of data extraction processes, particularly when working with SAP BW (Business Warehouse) or SAP Data Services. This error indicates that the system is unable to find or recognize the extract structure associated with the specified data source.
  Causes:
  
  Missing or Incomplete Data Source Configuration: The data source may not be properly configured in the SAP system, leading to the inability to determine its extract structure.
  Transport Issues: If the data source was recently transported from another system, it may not have been fully activated or may be missing necessary components.
  Authorization Issues: The user may not have the necessary authorizations to access the data source or its associated structures.
  Technical Issues: There may be underlying technical issues, such as inconsistencies in the data dictionary or problems with the underlying database.
  
  Solutions:
  
  
  Check Data Source Configuration:
  
  Go to the Data Source in the SAP system (transaction code RSA1 for BW).
  Ensure that the data source is correctly configured and activated.
  Verify that the extract structure is defined and linked to the data source.
  
  
  
  Re-activate the Data Source:
  
  Sometimes, simply reactivating the data source can resolve the issue. You can do this in the Data Source maintenance screen.
  
  
  
  Check Transport Logs:
  
  If the data source was recently transported, check the transport logs for any errors or warnings that might indicate what went wrong during the transport.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to access the data source and its structures. This can be checked in transaction SU53 or by consulting with your security team.
  
  
  
  Check for Technical Issues:
  
  Use transaction SE11 to check the data dictionary for the extract structure and ensure it exists and is correctly defined.
  If there are inconsistencies, you may need to perform a consistency check or repair the data dictionary.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes in the SAP Support Portal that may address this specific error message or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  Transaction Codes: RSA1 (Data Warehousing Workbench), SE11 (Data Dictionary), SE80 (Object Navigator).
  SAP BW Documentation: Review the official SAP BW documentation for more details on data sources and extract structures.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.