How To Fix CNV_OM_MWBGEN034 - Delete before Insert is only supported by transfer behaviour 1!

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV_OM_MWBGEN - SLO: Messages for Object Based MBW Generation

• Message number: 034

• Message text: Delete before Insert is only supported by transfer behaviour 1!

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message CNV_OM_MWBGEN034 - Delete before Insert is only supported by transfer behaviour 1! ?

  The SAP error message CNV_OM_MWBGEN034 indicates that there is an issue with the data transfer behavior in the context of a migration or data transfer process. Specifically, the error states that "Delete before Insert is only supported by transfer behavior 1." This typically occurs in the context of data migration projects, especially when using the SAP S/4HANA Migration Cockpit or similar tools.
  Cause:
  The error is caused by the use of a transfer behavior that does not support the "Delete before Insert" operation. In SAP data migration, different transfer behaviors dictate how data is handled during the migration process. The transfer behavior options typically include:
  
  Transfer Behavior 1: This allows for the deletion of existing records before inserting new ones.
  Transfer Behavior 2: This may allow for updates or inserts but does not support deletion before insertion.
  Transfer Behavior 3: This may involve other specific operations that do not include deletion.
  
  If your migration scenario is set to a transfer behavior that does not support the "Delete before Insert" operation, you will encounter this error.
  Solution:
  To resolve this error, you can take the following steps:
  
  
  Check Transfer Behavior: Review the transfer behavior settings in your migration project. Ensure that you are using Transfer Behavior 1 if you need to perform a "Delete before Insert" operation.
  
  
  Adjust Migration Settings: If you are using a different transfer behavior, consider changing it to Transfer Behavior 1. This may involve modifying the migration settings in the SAP Migration Cockpit or the relevant data migration tool you are using.
  
  
  Data Preparation: If changing the transfer behavior is not feasible, you may need to prepare your data differently. For example, you could manually delete the existing records before running the migration process.
  
  
  Consult Documentation: Refer to the official SAP documentation for the specific migration tool you are using. This documentation often provides detailed information on transfer behaviors and their implications.
  
  
  Testing: After making changes, conduct a test migration to ensure that the error is resolved and that the data is being transferred as expected.
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or updates regarding this error message.
  Migration Cockpit: Familiarize yourself with the SAP S/4HANA Migration Cockpit and its functionalities, as it is a common tool for data migration.
  Data Migration Best Practices: Review best practices for data migration in SAP environments to avoid similar issues in the future.
  
  By following these steps, you should be able to resolve the CNV_OM_MWBGEN034 error and successfully complete your data migration process.