How To Fix CNV_20100427 - No indicator for duplicate handling is set for table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 427

• Message text: No indicator for duplicate handling is set for table &1

What causes this issue?

The following key fields will be converted in table &V1&: &V2&.
During a chart of accounts merge, account merge or cost element merge,
this may cause duplicate entries.

How to fix this error?

No action is required. The table has been shipped without the indicator
for duplicate handling because other key fields should be sufficient to
make the record unique, and performance of the conversion will be better
if the indicator is not set for this table.
If duplicate entries do occur during the conversion, start transaction
CNV_TABLES and set the indicator for duplicate handling. If necessary,
contact SAP for support.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20100427 - No indicator for duplicate handling is set for table &1 ?

  The SAP error message CNV_20100427 indicates that there is no indicator set for duplicate handling for a specific table during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data transfer processes.
  Cause:
  The error occurs when the system attempts to process data for a table that requires duplicate handling, but the necessary configuration or settings to manage duplicates have not been defined. This can happen due to:
  
  Missing Configuration: The duplicate handling settings for the specific table have not been configured in the migration or conversion project.
  Incorrect Table Mapping: The table in question may not have been correctly mapped or defined in the migration settings.
  Data Quality Issues: The source data may contain duplicates that need to be addressed before migration.
  
  Solution:
  To resolve the error, you can take the following steps:
  
  
  Check Configuration:
  
  Go to the migration project settings and verify if the duplicate handling options are configured for the specific table.
  Ensure that the relevant indicators for duplicate handling (e.g., "Ignore duplicates," "Update existing records," "Create new records") are set appropriately.
  
  
  
  Review Table Mapping:
  
  Ensure that the table is correctly mapped in the migration project. Check if the table is included in the list of tables to be processed and that it has the necessary settings.
  
  
  
  Data Cleansing:
  
  If the source data contains duplicates, consider performing data cleansing before migration. This may involve identifying and removing duplicates in the source system or transforming the data to ensure uniqueness.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific migration tool you are using. There may be specific guidelines or best practices for handling duplicates.
  
  
  
  Testing:
  
  After making the necessary changes, run a test migration to ensure that the error is resolved and that the data is processed correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates related to this error message.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its features, especially regarding data mapping and duplicate handling.
  Data Migration Best Practices: Review best practices for data migration in SAP, which often include steps for data validation, cleansing, and transformation.
  
  If the issue persists after following these steps, consider reaching out to SAP support or consulting with an SAP expert who can provide more tailored assistance based on your specific scenario.