How To Fix CNV_DMC_WDA090 - Error while reading data from the staging table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_WDA - Messages used in WDA UI

• Message number: 090

• Message text: Error while reading data from the staging table &1

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_WDA090 - Error while reading data from the staging table &1 ?

  The SAP error message CNV_DMC_WDA090 typically occurs during data migration processes, particularly when using the SAP Data Migration Cockpit (DMC). This error indicates that there was an issue while reading data from a staging table, which is a temporary storage area used during the data migration process.
  Causes:
  
  Table Structure Issues: The structure of the staging table may not match the expected format, leading to read errors.
  Data Integrity Issues: There may be inconsistencies or corrupt data in the staging table that prevent successful reading.
  Database Locking: The staging table might be locked by another process, preventing access to the data.
  Authorization Issues: The user executing the migration may not have the necessary permissions to read from the staging table.
  Technical Errors: There could be underlying technical issues, such as database connectivity problems or configuration errors.
  
  Solutions:
  
  Check Table Structure: Verify that the staging table's structure matches the expected schema. Ensure that all required fields are present and correctly defined.
  Data Validation: Review the data in the staging table for any inconsistencies or corrupt entries. Cleanse the data if necessary.
  Release Locks: If the table is locked, identify the process holding the lock and resolve it. You may need to wait for the other process to complete or terminate it if appropriate.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the staging table. Adjust roles and permissions as needed.
  Check Logs: Review the application and system logs for any additional error messages or warnings that could provide more context about the issue.
  Database Connectivity: Ensure that the database connection is stable and that there are no network issues affecting access to the database.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to the CNV_DMC_WDA090 error for any specific patches or updates that may address known issues.
  Documentation: Refer to the SAP Data Migration Cockpit documentation for best practices and troubleshooting steps.
  Community Forums: Engage with SAP community forums or support channels for insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.