How To Fix CNV_IUUC_DB_CONN090 - Error creating table &1: Invalid data class

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_IUUC_DB_CONN - db connection

• Message number: 090

• Message text: Error creating table &1: Invalid data class

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_IUUC_DB_CONN090 - Error creating table &1: Invalid data class ?

  The SAP error message CNV_IUUC_DB_CONN090 typically occurs during the process of data migration or conversion, particularly when using the SAP Landscape Transformation (SLT) or SAP Data Services. This error indicates that there is an issue with the creation of a database table due to an "Invalid data class."
  Cause:
  The error can be caused by several factors, including:
  
  
  Invalid Data Class Specification: The data class specified for the table creation is not valid or does not exist in the system. Data classes in SAP define how data is stored in the database (e.g., in memory, on disk, etc.).
  
  
  Database Configuration Issues: There may be issues with the database configuration or the connection settings that prevent the proper creation of tables.
  
  
  Authorization Issues: The user executing the operation may not have the necessary authorizations to create tables in the specified schema.
  
  
  Incorrect Table Definition: The table definition might have incorrect parameters or settings that lead to the invalid data class error.
  
  
  Solution:
  To resolve the CNV_IUUC_DB_CONN090 error, you can take the following steps:
  
  
  Check Data Class: Verify the data class specified in the table definition. Ensure that it is a valid data class recognized by the SAP system. Common data classes include:
  
  APPL0: Master data
  APPL1: Transaction data
  APPL2: Customizing data
  
  
  
  Review Table Definition: If you are creating a custom table, review the table definition in the Data Dictionary (SE11) to ensure that all parameters are correctly set.
  
  
  Database Connection: Check the database connection settings in the SAP system. Ensure that the connection to the database is active and properly configured.
  
  
  User Authorizations: Ensure that the user executing the operation has the necessary authorizations to create tables in the database. You may need to consult with your SAP Basis team to verify user roles and permissions.
  
  
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes or updates that may address this specific error. There may be patches or updates that resolve known issues.
  
  
  Log Analysis: Review the logs for more detailed error messages that may provide additional context about the failure. This can help in diagnosing the root cause.
  
  
  Related Information:
  
  Transaction Codes: You may use transaction codes like SE11 (Data Dictionary) to check table definitions and SE37 (Function Builder) to analyze function modules related to data migration.
  SAP Documentation: Refer to the official SAP documentation for SLT or Data Services for best practices and guidelines on data migration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem persists after following these steps, consider reaching out to SAP support for further assistance.