How To Fix CNV_20320_CHECK005 - Activity Type &1: Field &2 needs to be unique over the complete validity

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20320_CHECK - Messages for check functions (Activity Types merge)

• Message number: 005

• Message text: Activity Type &1: Field &2 needs to be unique over the complete validity

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20320_CHECK005 - Activity Type &1: Field &2 needs to be unique over the complete validity ?

  The SAP error message CNV_20320_CHECK005 typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a uniqueness constraint violation for a specific field in the context of an activity type. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  The error message states that for the specified Activity Type (&1) and Field (&2), the values must be unique across the entire validity period. This means that the system has detected duplicate entries for the specified field that should be unique. This can happen due to:
  
  Duplicate Data: The source data being migrated contains duplicate entries for the specified field.
  Incorrect Mapping: The mapping of fields during the migration process may not be set up correctly, leading to conflicts.
  Data Integrity Issues: There may be underlying data integrity issues in the source system that need to be addressed before migration.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Review the source data for the specified activity type and field. Use SQL queries or data analysis tools to identify any duplicate entries.
  
  
  
  Clean Up Data:
  
  Remove or consolidate duplicate entries in the source data. Ensure that each entry for the specified field is unique across the validity period.
  
  
  
  Check Mapping:
  
  Review the mapping configuration in the migration tool to ensure that the fields are correctly mapped and that there are no unintended duplications.
  
  
  
  Adjust Validity Period:
  
  If applicable, check the validity periods of the entries. Ensure that the entries do not overlap in a way that would cause uniqueness violations.
  
  
  
  Test Migration:
  
  After making the necessary adjustments, perform a test migration to verify that the error has been resolved.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration tool you are using for any additional guidance or best practices.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions for this specific error message.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using to understand the requirements for data uniqueness.
  Data Quality Tools: Consider using data quality tools to help identify and resolve data integrity issues before migration.
  
  By following these steps, you should be able to address the CNV_20320_CHECK005 error and ensure a successful data migration process.