How To Fix CNV_00001104 - Routine for custom priority duplicate handling not defined

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 104

• Message text: Routine for custom priority duplicate handling not defined

What causes this issue?

No routine for priority handling in case of duplicate keys was
provided, although the type of duplicate entries processing was set to
'Custom priority routine' for table &V1&.

System Response

If this setting is not changed, the conversion program for table &V1&
will not be generated properly.

How to fix this error?

Provide a routine that will handle the duplicate key entries for table
&V1& or change the duplicate handling type.

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_00001104 - Routine for custom priority duplicate handling not defined ?

  The SAP error message CNV_00001104 indicates that there is an issue with the handling of duplicate entries during a data migration or conversion process, specifically related to the custom priority for duplicate handling not being defined. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion tools.
  Cause:
  The error occurs when the system attempts to process duplicate entries but cannot find a defined routine or logic to handle these duplicates according to custom priorities. This can happen due to:
  
  Missing Custom Logic: The custom logic for handling duplicates has not been implemented or is not activated in the system.
  Configuration Issues: The configuration settings for the data migration process may not have been set up correctly, leading to the absence of a defined routine.
  Incorrect Data Mapping: The data mapping or transformation rules may not have been properly defined, causing the system to encounter duplicates without a clear resolution strategy.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Define Custom Logic:
  
  Implement a custom routine for handling duplicates. This may involve writing ABAP code or using existing functions to specify how duplicates should be processed (e.g., keeping the latest entry, merging data, etc.).
  Ensure that this routine is properly registered and accessible during the data migration process.
  
  
  
  Check Configuration:
  
  Review the configuration settings in the data migration tool to ensure that the duplicate handling options are correctly set up.
  Verify that the relevant parameters for duplicate handling are defined in the migration cockpit or the specific data migration program you are using.
  
  
  
  Review Data Mapping:
  
  Check the data mapping and transformation rules to ensure that they are correctly defined and that they account for potential duplicates.
  Make adjustments as necessary to ensure that the data being migrated does not lead to conflicts.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or guides related to the specific data migration tool you are using. This may provide insights into how to define custom routines for duplicate handling.
  
  
  
  Testing:
  
  After implementing the changes, conduct thorough testing to ensure that the duplicate handling logic works as expected and that the error does not reoccur.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional guidance on handling duplicates in data migration.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP, which often include strategies for handling duplicates effectively.
  
  By following these steps, you should be able to resolve the CNV_00001104 error and successfully manage duplicate entries during your data migration process.