How To Fix CNV_20800086 - No temporary duplicates during conversion flag for table &1 should be set

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_20800 - Message class for CNV_20800

• Message number: 086

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

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_20800086 - No temporary duplicates during conversion flag for table &1 should be set ?

  The SAP error message CNV_20800086 indicates that during a data conversion process, the system has detected that there are no temporary duplicates allowed for a specific table. This error typically arises in the context of data migration or conversion projects, particularly when using SAP's tools for data transformation, such as the SAP S/4HANA Migration Cockpit or other data conversion tools.
  Cause:
  The error occurs when the conversion process attempts to handle data in a way that requires the temporary duplicates flag to be set for a specific table, but it is not set. This can happen due to several reasons:
  
  Data Integrity Constraints: The table in question may have constraints that prevent the creation of temporary duplicates.
  Configuration Issues: The conversion settings may not be correctly configured to allow for temporary duplicates.
  Data Model Changes: Changes in the data model or structure of the target system may lead to this issue if the source data does not align with the expected structure.
  
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Configuration: Review the configuration settings for the data conversion process. Ensure that the temporary duplicates flag is set correctly for the relevant table. This may involve adjusting settings in the migration tool or conversion program.
  
  
  Data Review: Analyze the data in the source system to identify any potential issues that could lead to conflicts during the conversion. Look for unique constraints or relationships that may be violated.
  
  
  Adjust Data Model: If the data model has changed, ensure that the source data aligns with the new model. You may need to transform or clean the data before the conversion.
  
  
  Consult Documentation: Refer to the SAP documentation related to the specific migration or conversion tool you are using. There may be specific guidelines or prerequisites that need to be followed.
  
  
  Contact SAP Support: If the issue persists after checking the above points, consider reaching out to SAP Support for assistance. They may provide insights specific to your system configuration and the error message.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional context.
  Migration Cockpit Documentation: Review the official SAP documentation for the Migration Cockpit or the specific tool you are using for data conversion.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can share their solutions.
  
  By following these steps, you should be able to identify the root cause of the error and implement a solution to proceed with your data conversion process.