How To Fix CNV_DMC_SIN462 - Mapping value &1 of Work package ID &2 is not unique.

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_DMC_SIN - Messages for s-innovations migration

• Message number: 462

• Message text: Mapping value &1 of Work package ID &2 is not unique.

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_DMC_SIN462 - Mapping value &1 of Work package ID &2 is not unique. ?

  The SAP error message CNV_DMC_SIN462 indicates that there is a problem with the uniqueness of a mapping value in a data migration context, specifically related to a work package ID. This error typically arises during data migration processes, such as when using the SAP Data Migration Cockpit (DMC) or other tools for data transfer.
  Cause:
  The error occurs when the mapping value for a specific work package ID is not unique. This means that there are multiple entries in the mapping table that correspond to the same value for the specified work package. This can happen due to:
  
  Duplicate Entries: There are duplicate records in the mapping table for the same work package ID.
  Incorrect Mapping Configuration: The mapping configuration may have been set up incorrectly, leading to non-unique values.
  Data Quality Issues: The source data may contain duplicates or inconsistencies that are causing the mapping to fail.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Review the mapping table for the specified work package ID and identify any duplicate entries.
  Use SQL queries or data analysis tools to find duplicates based on the mapping value.
  
  
  
  Correct the Mapping:
  
  If duplicates are found, determine which entry is correct and remove or consolidate the duplicates.
  Ensure that each mapping value is unique for the given work package ID.
  
  
  
  Review Mapping Configuration:
  
  Check the mapping configuration settings in the Data Migration Cockpit or the relevant tool you are using.
  Ensure that the mapping rules are correctly defined to avoid creating duplicates.
  
  
  
  Data Cleansing:
  
  If the source data contains duplicates, consider cleansing the data before migration.
  Implement data quality checks to ensure that the data being migrated is clean and consistent.
  
  
  
  Re-run the Migration:
  
  After making the necessary corrections, re-run the migration process to see if the error persists.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes or documentation that may provide additional insights or updates regarding this error.
  Data Migration Cockpit Documentation: Review the official SAP documentation for the Data Migration Cockpit for best practices and troubleshooting tips.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed.
  
  By following these steps, you should be able to identify and resolve the issue causing the CNV_DMC_SIN462 error message.