How To Fix CNV_20900086 - No temporary duplicates during conversion flag for table &1 should be set

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 086

• Message text: No temporary duplicates during conversion flag for table &1 should be set

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20900086 - No temporary duplicates during conversion flag for table &1 should be set ?

  The SAP error message CNV_20900086 indicates that during a data conversion process, the system has detected that the "No temporary duplicates during conversion" flag for a specific table (denoted as &1) should be set. This typically occurs in the context of data migration or conversion projects, especially when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  The error is usually caused by the following reasons:
  
  Data Integrity Issues: The source data may contain duplicate entries that violate the uniqueness constraints of the target table.
  Configuration Settings: The conversion settings may not have been properly configured to handle duplicates during the migration process.
  Missing Flags: The necessary flags or settings in the conversion program may not be activated, leading to this error.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Source Data:
  
  Review the source data for duplicates. You can run queries to identify any duplicate records in the source table that may cause issues during conversion.
  If duplicates are found, you may need to clean the data by removing or consolidating duplicate entries.
  
  
  
  Set the Flag:
  
  If the duplicates are acceptable and you want to allow temporary duplicates during the conversion, you can set the "No temporary duplicates during conversion" flag for the specified table. This can usually be done in the configuration settings of the migration tool you are using.
  
  
  
  Adjust Conversion Settings:
  
  Review the conversion settings in the migration tool. Ensure that the settings are configured to handle duplicates appropriately based on your business requirements.
  
  
  
  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 during the conversion process.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform a test run of the conversion process to ensure that the error is resolved and that the data is migrated correctly.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  Data Migration Best Practices: Familiarize yourself with best practices for data migration in SAP, including data cleansing, validation, and testing.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have implemented.
  
  By following these steps, you should be able to address the CNV_20900086 error and successfully proceed with your data conversion process.