How To Fix CNV794 - There is no field for aggregation defined for the table &1

SAP Error Message - Details

• Message type: E = Error

• Message class: CNV - Conversion: Messages for Conversion Services (CNCC)

• Message number: 794

• Message text: There is no field for aggregation defined for the table &1

What causes this issue?

No field was selected to be aggregate in table &V1& although the
duplicate processing type was set to "Aggregate Function".

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Select fields to aggregate or change duplicate processing method.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV794 - There is no field for aggregation defined for the table &1 ?

  The SAP error message CNV794 "There is no field for aggregation defined for the table &1" typically occurs during data migration or conversion processes, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that the system is unable to find a field in the specified table that can be used for aggregation, which is necessary for the data processing being attempted.
  Cause:
  
  Missing Aggregation Field: The table specified in the error message does not have a designated field that can be used for aggregation. This is often the case if the table structure does not include a numeric or key field that can be summed or counted.
  Incorrect Configuration: The data migration configuration may not be set up correctly, leading to the system not recognizing the appropriate fields for aggregation.
  Data Model Changes: If there have been changes to the data model (e.g., during an upgrade or migration), the expected fields for aggregation may have been altered or removed.
  
  Solution:
  
  Check Table Structure: Review the structure of the table mentioned in the error message. Ensure that there is at least one field that can be used for aggregation (e.g., a numeric field).
  Update Migration Configuration: If you are using a migration tool, check the configuration settings to ensure that the correct fields are mapped for aggregation. You may need to adjust the mapping to include an appropriate field.
  Consult Documentation: Refer to the SAP documentation for the specific migration tool you are using. There may be guidelines or requirements regarding the fields that need to be present for successful aggregation.
  Data Model Review: If the error is due to changes in the data model, review the changes and ensure that the necessary fields for aggregation are present in the new model.
  Contact SAP Support: If you are unable to resolve the issue, consider reaching out to SAP support for assistance. They may provide insights specific to your version and configuration.
  
  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 migration.
  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 cause of the CNV794 error and implement a solution to resolve it.