How To Fix CNV_MBT_SHELL026 - This record already exists in the database

CNV_MBT_SHELL026 - Overview

• Message type: E = Error

• Message class: CNV_MBT_SHELL - Shell Creation

• Message number: 026

• Message text: This record already exists in the database

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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CNV_MBT_SHELL026 - Details

• The SAP error message CNV_MBT_SHELL026 indicates that there is an attempt to insert a record into the database that already exists. This error typically occurs during data migration or data transfer processes, particularly when using SAP's Migration Cockpit or other data migration tools.
  
  Cause:
  
  Duplicate Records: The most common cause is that the data being imported contains duplicate entries that violate the unique constraints of the database table.
  Incorrect Mapping: The mapping of fields during the migration process may not be set up correctly, leading to attempts to insert records that already exist.
  Data Preparation Issues: The source data may not have been cleaned or deduplicated properly before the migration process.
  Transaction Conflicts: If multiple processes are trying to insert the same record simultaneously, it can lead to this error.
  
  
  Solution:
  
  Identify Duplicates: Check the source data for duplicates. You can use tools like Excel or SQL queries to identify and remove duplicate records before migration.
  Review Mapping: