How To Fix CNV_12000146 - Description '&1: '&2' and '&3': '&4' is a duplicate and will be deleted

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_12000 - Messages for shorttext and description conversion

• Message number: 146

• Message text: Description '&1: '&2' and '&3': '&4' is a duplicate and will be deleted

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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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_12000146 - Description '&1: '&2' and '&3': '&4' is a duplicate and will be deleted ?

  The SAP error message CNV_12000146 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 are duplicate entries in the data being processed, which violates the uniqueness constraints expected by the system.
  Cause:
  The error message CNV_12000146 indicates that the system has detected duplicate entries in the data set being processed. The placeholders &1, &2, &3, and &4 represent specific details about the duplicate entries, such as the type of data and the identifiers of the duplicates. The duplicates could arise from:
  
  Data Extraction Issues: When data is extracted from legacy systems, duplicates may not have been filtered out.
  Data Transformation Errors: During the transformation phase, data may be inadvertently duplicated.
  Incorrect Mapping: If the mapping of fields is not done correctly, it can lead to duplicates being created in the target system.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Identify Duplicates: Review the data set to identify the specific entries that are causing the duplication. You can use SQL queries or data analysis tools to find duplicates based on the identifiers mentioned in the error message.
  
  
  Clean the Data: Once you have identified the duplicates, you need to decide how to handle them. You can either:
  
  Remove the duplicates if they are not needed.
  Merge the duplicates if they contain complementary information.
  Adjust the data extraction or transformation logic to prevent duplicates from being created.
  
  
  
  Adjust Mapping: If the duplicates are a result of incorrect mapping, review and correct the mapping configuration in your data migration tool.
  
  
  Re-run the Migration: After cleaning the data and making necessary adjustments, re-run the migration or conversion process to see if the error persists.
  
  
  Consult Documentation: If the issue continues, refer to SAP documentation or support resources for further guidance on handling this specific error.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might provide additional context or solutions for this error.
  Data Migration Tools: Familiarize yourself with the specific data migration tools being used (e.g., SAP S/4HANA Migration Cockpit, SAP Data Services) as they may have built-in functionalities to handle duplicates.
  Testing: Always perform thorough testing in a non-production environment before executing data migrations in a live system to catch such issues early.
  
  By following these steps, you should be able to address the CNV_12000146 error effectively.