How To Fix CNV_20900085 - No temporary duplicates during conversion flag for table &1 was set

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20900 - Message class for package CNV_20900

• Message number: 085

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

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_20900085 - No temporary duplicates during conversion flag for table &1 was set ?

  The SAP error message CNV_20900085 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) has been set. This typically occurs in the context of data migration or conversion projects, particularly when using SAP's tools for data migration, such as the SAP S/4HANA Migration Cockpit or other conversion tools.
  Cause:
  The error is caused by the following scenarios:
  
  Data Integrity Issues: The data in the source system may contain duplicates that violate the uniqueness constraints of the target table.
  Configuration Settings: The conversion process has been configured to not allow temporary duplicates, which means that the system is enforcing strict data integrity rules during the migration.
  Mapping Errors: There may be issues in the mapping of fields from the source to the target table, leading to potential duplicates.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check for Duplicates:
  
  Analyze the data in the source system for duplicates that may be causing the issue. You can run SQL queries or use data analysis tools to identify duplicate records in the relevant table.
  
  
  
  Adjust Data Mapping:
  
  Review the mapping configuration to ensure that it correctly handles unique constraints. Make sure that the fields that should be unique are properly mapped and that there are no conflicts.
  
  
  
  Modify Conversion Settings:
  
  If appropriate, consider adjusting the conversion settings to allow temporary duplicates during the conversion process. However, this should be done with caution, as it may lead to data integrity issues in the target system.
  
  
  
  Data Cleansing:
  
  Cleanse the data in the source system to remove or consolidate duplicates before running the conversion again. This may involve deduplication processes or merging records.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation related to the specific migration or conversion tool you are using. There may be specific guidelines or best practices for handling duplicates.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform a test run of the conversion process to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  Data Migration Tools: Familiarize yourself with the specific data migration tools and their settings, as they may have options for handling duplicates.
  Community Forums: Engage with SAP community forums or support channels where similar issues may have been discussed, and solutions shared.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to successfully complete the data conversion process.