How To Fix CNV_MBT_46423 - Select only one row

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_MBT_46 - PCL message class

• Message number: 423

• Message text: Select only one row

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_MBT_46423 - Select only one row ?

  The SAP error message CNV_MBT_46423 typically occurs during data migration processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that the system expects only one row to be selected from a dataset, but multiple rows are being returned or selected.
  Cause:
  
  
  Multiple Rows Returned: The most common cause of this error is that the query or selection criteria used to fetch data is returning multiple rows instead of a single row. This can happen due to:
  
  Incorrect filtering conditions in the selection criteria.
  Data inconsistencies or duplicates in the source data.
  Misconfiguration in the migration settings.
  
  
  
  Data Model Issues: The underlying data model may not be designed to ensure uniqueness for the selected criteria, leading to multiple records being returned.
  
  
  Solution:
  
  
  Review Selection Criteria: Check the selection criteria used in the migration process. Ensure that the criteria are specific enough to return only one row. You may need to refine the filters or conditions.
  
  
  Data Cleansing: Investigate the source data for duplicates or inconsistencies. If multiple records are not expected, you may need to clean the data to ensure that only unique records are present.
  
  
  Adjust Mapping: If you are using a mapping or transformation logic, ensure that it is correctly set up to handle the data appropriately and that it does not inadvertently cause multiple rows to be selected.
  
  
  Debugging: If you have access to debugging tools, you can trace the execution of the migration process to identify where the multiple rows are being selected.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool you are using. There may be specific guidelines or best practices for handling such errors.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context or solutions.
  Community Forums: SAP Community and other forums can be valuable resources for finding similar issues faced by other users and the solutions they implemented.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit, as it may provide insights into common pitfalls and best practices for data migration.
  
  By addressing the root cause of the error and ensuring that your selection criteria and data are correctly configured, you should be able to resolve the CNV_MBT_46423 error.