How To Fix CNV_10020726 - Only select rows that do not have an initial table

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 726

• Message text: Only select rows that do not have an initial table

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020726 - Only select rows that do not have an initial table ?

  The SAP error message CNV_10020726 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system is trying to select rows from a table that should not have any initial data or rows, which can lead to issues in the migration process.
  Cause:
  
  Initial Table Requirement: The error suggests that the operation is attempting to select data from a table that is expected to be empty or not initialized. This could happen if the migration process is incorrectly configured or if there is a misunderstanding of the data model.
  Data Mapping Issues: There may be a mismatch in the data mapping or transformation rules that lead to the selection of rows from a table that should not contain any data at that point in the migration.
  Incorrect Configuration: The migration settings or parameters may not be set correctly, leading to attempts to access or manipulate data inappropriately.
  
  Solution:
  
  Check Migration Settings: Review the configuration settings of the migration project to ensure that the initial tables are correctly defined and that the migration process is set up to handle them appropriately.
  Validate Data Mapping: Ensure that the data mapping and transformation rules are correctly defined. Make sure that the source and target tables are aligned and that the migration logic does not attempt to select from tables that should be empty.
  Review Initial Data Load: If the migration process involves an initial data load, ensure that the tables are indeed empty before the migration starts. If they are not, you may need to clear them or adjust the migration strategy.
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool you are using. There may be specific guidelines or prerequisites that need to be followed.
  Error Logs: Check the error logs for more detailed information about the context in which the error occurred. This can provide insights into what specific operation triggered the error.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums where other users may have encountered similar issues and can share their solutions.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using, as it may contain best practices and troubleshooting tips.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.