How To Fix CNV_00001101 - Duplicate handling type not specified, although key field is converted

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_00001 - Message class for CWB settings maintenance programs

• Message number: 101

• Message text: Duplicate handling type not specified, although key field is converted

What causes this issue?

Duplicate handling type not specified for table &V1& although at least
one of the converted key fields belongs to primary key.

System Response

During the conversion it is possible that duplicate key entries are to
be inserted into a table. Depending on the conversion scenario this may
cause errors or dumps.

How to fix this error?

Maintain the duplicate handling type for table &V1& by choosing one of
the options from the list.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_00001101 - Duplicate handling type not specified, although key field is converted ?

  The SAP error message CNV_00001101 indicates that there is a problem with the handling of duplicate entries during a data conversion process. Specifically, it suggests that a duplicate handling type has not been specified, even though a key field has been converted. This error typically arises in the context of data migration or conversion projects, particularly when using SAP's Conversion Tools.
  Cause:
  
  Missing Duplicate Handling Configuration: The error occurs when the system expects a duplicate handling type to be defined for a specific data conversion process, but it has not been set. This is often the case when the data being processed contains key fields that may have duplicates.
  Data Quality Issues: The source data may contain duplicates that need to be addressed before the conversion can proceed.
  Configuration Errors: There may be a misconfiguration in the conversion settings or parameters that govern how duplicates should be handled.
  
  Solution:
  
  
  Specify Duplicate Handling Type:
  
  Go to the relevant configuration settings in the SAP system where the data conversion is being set up.
  Look for options related to duplicate handling and specify the appropriate handling type (e.g., "Ignore", "Update", "Delete", etc.) based on your business requirements.
  
  
  
  Review Source Data:
  
  Analyze the source data to identify any duplicates in the key fields. You may need to clean the data to ensure that it meets the requirements for conversion.
  Use tools or scripts to identify and resolve duplicates in the source data before attempting the conversion again.
  
  
  
  Check Conversion Settings:
  
  Review the settings in the data migration tool or program you are using to ensure that all necessary parameters are correctly configured.
  Ensure that the conversion program is set up to handle duplicates appropriately.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation or notes related to the specific conversion tool you are using. There may be additional guidance or best practices for handling duplicates.
  
  
  
  Testing:
  
  After making the necessary changes, perform a test run of the conversion process to ensure that the error is resolved and that the data is being processed correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  Data Migration Tools: Familiarize yourself with the specific data migration tools being used (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) and their documentation for handling duplicates.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By addressing the configuration for duplicate handling and ensuring the quality of the source data, you should be able to resolve the CNV_00001101 error and proceed with your data conversion successfully.