How To Fix CNV765 - Unique secondary index & of table & can cause duplicates.

CNV765 - Overview

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 765

• Message text: Unique secondary index & of table & can cause duplicates.

What causes this issue?

A unique secondary index was found.

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?

This unique secondary index was saved in table CNVINDEX. It will be
dropped automatically during the conversion and re-created afterwards.

Error message extract from SAP system. Copyright SAP SE.

CNV765 - Details

• The SAP error message CNV765 indicates that there is a potential issue with a unique secondary index on a database table that could lead to duplicate entries. This error typically arises during data migration or conversion processes, particularly when using SAP's Data Migration tools or during system upgrades.
  
  Cause:
  The error occurs when:
  
  A unique secondary index is defined on a table, but the data being inserted or migrated contains duplicate values for the fields that make up that index.
  The data being processed does not conform to the uniqueness constraint defined by the secondary index, which can happen if the source data has duplicates or if the transformation logic does not handle duplicates correctly.
  
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates:
  
  Check the data that is being migrated or processed to identify any duplicates in the fields that are part of the unique secondary index.
  You can use SQL queries or data