How To Fix CNV_10100215 - For set class &1 no duplicate records expected

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10100 - Messages from package 10100

• Message number: 215

• Message text: For set class &1 no duplicate records expected

What causes this issue?

The system prepares the analysis, so that the analysis can identify
potential duplicate records of set classes. The relevant conversion
package does not expect duplicate records for this set class; no mapping
values are specified for the sub class.

System Response

The system does not check set class &V1& for potential duplicate
records.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10100215 - For set class &1 no duplicate records expected ?

  The SAP error message CNV_10100215 indicates that during a data migration or conversion process, the system has encountered duplicate records for a specified set class. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer processes.
  Cause:
  The error occurs when the system expects unique records for a particular set class, but it finds multiple entries that violate this uniqueness constraint. This can happen due to:
  
  Data Duplication: The source data may contain duplicate entries that were not cleaned up before the migration.
  Incorrect Mapping: The mapping of fields during the migration process may not be set up correctly, leading to the creation of duplicate records.
  Configuration Issues: The configuration of the set class in the target system may not align with the source data structure.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates: 
  
  Review the source data to identify the duplicate records for the specified set class. You can use SQL queries or data analysis tools to find duplicates based on the unique key fields.
  
  
  
  Data Cleansing:
  
  Clean the source data by removing or consolidating duplicate records. Ensure that only unique records are present before attempting the migration again.
  
  
  
  Check Mapping:
  
  Review the mapping configuration in the migration tool to ensure that it correctly reflects the intended data structure and uniqueness constraints.
  
  
  
  Adjust Configuration:
  
  If necessary, adjust the configuration of the set class in the target system to accommodate the incoming data structure, ensuring that it can handle the records appropriately.
  
  
  
  Test Migration:
  
  After making the necessary adjustments, perform a test migration with a smaller dataset to verify that the issue 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 Tools: Familiarize yourself with the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit) and its documentation for handling data integrity issues.
  Data Governance: Implement data governance practices to ensure data quality and integrity before migration processes in the future.
  
  By following these steps, you should be able to resolve the CNV_10100215 error and successfully complete your data migration.