How To Fix CNV_20800238 - Temporary duplicates and Scenario determination check:

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 238

• Message text: Temporary duplicates and Scenario determination check:

What causes this issue?

If one customer number is changing to another one which is already
existing in the mapping as an old customer number.
For example: If A >B and B >C maintained in mapping
If you want to convert customer number A->B and B->C and A & B
customer numbers are already existing in the table KNA1, then you can
see a message specifying the Temporary duplicates .

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

System Response

How to fix this error?

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_20800238 - Temporary duplicates and Scenario determination check: ?

  The SAP error message CNV_20800238, which refers to "Temporary duplicates and Scenario determination check," typically arises during data migration or conversion processes, particularly when using SAP's data migration tools like the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  
  Temporary Duplicates: This error indicates that the system has detected temporary duplicates in the data being processed. This can happen if the same data record is being processed multiple times or if there are inconsistencies in the data that lead to duplicate entries.
  Scenario Determination Check: The error may also relate to the system's inability to determine the correct scenario for processing the data due to these duplicates. This can occur if the data does not meet the expected criteria for a specific migration scenario.
  
  Solution:
  
  
  Data Cleansing: Review the data being migrated for duplicates. This may involve:
  
  Running queries to identify duplicate records.
  Implementing data cleansing processes to remove or consolidate duplicates before migration.
  
  
  
  Check Migration Settings: Ensure that the migration settings and mappings are correctly configured. This includes:
  
  Verifying that the source and target mappings are accurate.
  Ensuring that the scenario being used for migration is appropriate for the data being processed.
  
  
  
  Use of Unique Identifiers: If applicable, ensure that unique identifiers (like primary keys) are correctly defined and used in the data. This can help prevent duplicates from being created during the migration process.
  
  
  Review Logs and Documentation: Check the migration logs for more detailed error messages or warnings that can provide additional context on the issue. SAP documentation and notes related to the specific migration tool being used may also offer insights or solutions.
  
  
  Testing: Conduct thorough testing in a non-production environment to identify and resolve any issues before performing the actual migration.
  
  
  Consult SAP Support: If the issue persists, consider reaching out to SAP Support for assistance. They may provide specific notes or patches that address the issue.
  
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide guidance on handling data migration issues.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using, as it may contain troubleshooting steps or best practices.
  Community Forums: Engage with SAP community forums or user groups where similar issues may have been discussed, and solutions shared.
  
  By addressing the root causes of the temporary duplicates and ensuring proper scenario determination, you can resolve the CNV_20800238 error and successfully complete your data migration.