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

CNV_20320_CHECK005 - Overview

• 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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CNV_20320_CHECK005 - Details

• 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