How To Fix CNV_IUUC_ODQ034 - SQL Error when selecting data from source - Field unknown

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_ODQ - Error messages for ODQ replication

• Message number: 034

• Message text: SQL Error when selecting data from source - Field unknown

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_ODQ034 - SQL Error when selecting data from source - Field unknown ?

  The SAP error message CNV_IUUC_ODQ034 typically occurs during data migration or data extraction processes, particularly when using the SAP Landscape Transformation (SLT) replication or data conversion tools. This error indicates that there is an issue with selecting data from the source, specifically that a field being referenced is unknown or not recognized.
  Cause:
  
  Field Name Mismatch: The field specified in the SQL query does not exist in the source table or view. This could be due to a typo, a change in the database schema, or the field being removed or renamed.
  Data Source Configuration: The data source may not be correctly configured, leading to the system not recognizing certain fields.
  Version Compatibility: There may be compatibility issues between the source system and the target system, especially if there have been updates or changes in the data model.
  Authorization Issues: The user executing the query may not have the necessary permissions to access certain fields in the source database.
  
  Solution:
  
  Verify Field Names: Check the SQL query or the data mapping configuration to ensure that all field names are correct and exist in the source table. You can do this by querying the source database directly.
  Check Data Source Configuration: Review the configuration settings for the data source in the SLT or data migration tool to ensure that all fields are correctly mapped and recognized.
  Update Data Model: If there have been changes to the source database schema, update the data model in the SLT configuration to reflect these changes.
  Review Authorizations: Ensure that the user executing the data extraction has the necessary authorizations to access all relevant fields in the source system.
  Consult Logs: Check the SLT logs or any relevant error logs for more detailed information about the error, which may provide additional context or specific field names that are causing the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide guidance on similar issues.
  Documentation: Review the official SAP documentation for SLT and data migration processes to ensure that you are following best practices and configurations.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance, providing them with detailed information about the error and the context in which it occurs.