How To Fix CNV_10020496 - Definition of &1 &2 is already used in &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_10020 - Message class for package 10020

• Message number: 496

• Message text: Definition of &1 &2 is already used in &3 &4

What causes this issue?

The definition of &V1& &V2& already exists in &V3& &V4&. Duplicate
objects should be avoided.

How to fix this error?

Intead of using &V1& &V2&, you should use &V3& &V4&.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_10020496 - Definition of &1 &2 is already used in &3 &4 ?

  The SAP error message CNV_10020496, which states "Definition of &1 &2 is already used in &3 &4," typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or during the execution of a conversion program. This error indicates that there is a conflict or duplication in the definitions of certain objects or data structures.
  Cause:
  The error is generally caused by one of the following reasons:
  
  Duplicate Definitions: The system has detected that the definition of a particular object (like a field, table, or structure) is already in use or defined elsewhere in the system.
  Incorrect Mapping: During the data migration process, the mapping of fields or structures may have been incorrectly set up, leading to conflicts.
  Configuration Issues: There may be issues in the configuration settings that lead to the same definition being referenced multiple times.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  Check for Duplicates: Review the definitions of the objects mentioned in the error message. Look for any duplicate entries in the relevant tables or structures.
  Adjust Mapping: If the error is related to data mapping, ensure that the mappings are correctly defined and that there are no overlaps or conflicts.
  Review Configuration: Check the configuration settings in the migration tool or program to ensure that they are set up correctly and do not reference the same definitions multiple times.
  Consult Documentation: Refer to the SAP documentation or notes related to the specific migration tool you are using for any known issues or additional troubleshooting steps.
  Debugging: If you have access to debugging tools, you can trace the execution of the program to identify where the conflict arises.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any specific notes related to the error message CNV_10020496. SAP frequently updates their knowledge base with solutions for common issues.
  Migration Tools: Familiarize yourself with the specific migration tools you are using (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have specific guidelines or best practices for avoiding such errors.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  If the issue persists after trying the above solutions, consider reaching out to SAP support for further assistance.