How To Fix CNV_PE_GEN146 - Field transformation and 'Copy' or 'Flag' link are defined for field &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_PE_GEN - Messages for object generation

• Message number: 146

• Message text: Field transformation and 'Copy' or 'Flag' link are defined for field &1

What causes this issue?

Link field &V1& is assigned to a data field with link of a type <ZK>Copy
</>or <ZK>Flag</>. At the same time field transformation is defined for
the field &V1&. The configuration is ambiguous.

System Response

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

How to fix this error?

Delete field transformation for the field &V1& or set type <ZK>No Link
</> for the corresponding parameter link in the knowledge base.

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_PE_GEN146 - Field transformation and 'Copy' or 'Flag' link are defined for field &1 ?

  The SAP error message CNV_PE_GEN146 typically occurs during data migration or transformation processes, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This error indicates that there is a conflict in the transformation rules defined for a specific field, where both a field transformation and a 'Copy' or 'Flag' link are defined simultaneously for the same field.
  Cause:
  The error arises due to the following reasons:
  
  Conflicting Definitions: The field in question has both a transformation rule (which modifies the data) and a 'Copy' or 'Flag' link (which indicates that the field should be copied or flagged without transformation). This creates ambiguity in how the data should be processed.
  Incorrect Configuration: During the setup of the migration or transformation process, the configuration may have inadvertently included both types of rules for the same field.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Review Transformation Rules: Check the transformation rules defined for the field mentioned in the error message. Identify if there is a transformation rule that conflicts with the 'Copy' or 'Flag' link.
  
  
  Modify Configuration:
  
  If you need to transform the field, remove the 'Copy' or 'Flag' link for that field.
  If the intention is to copy or flag the field without transformation, remove the transformation rule.
  
  
  
  Test Changes: After making the necessary adjustments, re-run the migration or transformation process to ensure that the error is resolved.
  
  
  Documentation: Document the changes made to the transformation rules for future reference and to avoid similar issues.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates regarding this error message.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using to understand the correct configuration practices.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, providing insights or solutions from other users.
  
  By following these steps, you should be able to resolve the CNV_PE_GEN146 error and proceed with your data migration or transformation tasks.