How To Fix CNV20551779 - Table &1: Combination check used. Error in CNVFIELDS/CNVSTPARS

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV20551 - message for package 20551 (company code delete)

• Message number: 779

• Message text: Table &1: Combination check used. Error in CNVFIELDS/CNVSTPARS

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV20551779 - Table &1: Combination check used. Error in CNVFIELDS/CNVSTPARS ?

  The SAP error message CNV20551779 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there is a problem with the combination check for a specific table, which is likely related to the configuration or data integrity of the fields being processed.
  Cause:
  
  
  Combination Check Violation: The error suggests that the data being processed does not meet the combination check requirements defined for the specified table. This could be due to:
  
  Missing mandatory fields.
  Invalid combinations of field values that do not comply with the defined business rules.
  Data inconsistencies or duplicates in the source data.
  
  
  
  Configuration Issues: There may be issues with the configuration of the migration settings or the mapping of fields between the source and target systems.
  
  
  Data Quality Issues: The source data may contain errors, such as incorrect formats, invalid values, or missing entries that violate the constraints of the target table.
  
  
  Solution:
  
  
  Check Data Integrity: Review the data being migrated to ensure that it adheres to the combination checks defined in the target table. Look for:
  
  Missing or incorrect values in mandatory fields.
  Invalid combinations of values that do not meet the business rules.
  
  
  
  Review Mapping Configuration: Verify the mapping configuration in the migration tool to ensure that all fields are correctly mapped and that the transformation rules are correctly applied.
  
  
  Adjust Combination Checks: If necessary, you may need to adjust the combination checks in the target system to accommodate the incoming data. This should be done with caution and in accordance with business requirements.
  
  
  Data Cleansing: Perform data cleansing on the source data to correct any inconsistencies or errors before attempting the migration again.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration tool you are using for additional guidance on handling combination checks and error messages.
  
  
  Testing: After making the necessary adjustments, conduct a test migration with a smaller dataset to ensure that the issue has been resolved before proceeding with the full migration.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this specific error message.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Transaction Codes: Familiarize yourself with relevant transaction codes (e.g., LSMW, LTMC) that are used for data migration in SAP.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or support team for further assistance.