How To Fix CNV795 - Duplicate processing type for table &1 does not allow value aggregation

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 795

• Message text: Duplicate processing type for table &1 does not allow value aggregation

What causes this issue?

The duplcate processing type for table &V1& is neither "Aggregate
function" nor "Custom Priority Routine". However one or more fields were
selected to be aggregated.

System Response

The values of the selected fields cannot be aggregated.

How to fix this error?

Either change the duplicate processing type to the one that supports
value aggregation or clear the aggregation indicator for the
corresponding fields.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CNV795 - Duplicate processing type for table &1 does not allow value aggregation ?

  The SAP error message CNV795 indicates that there is a duplicate processing type for a specific table, which prevents value aggregation. This typically occurs during data migration or conversion processes, particularly when using SAP's Data Migration tools or the SAP S/4HANA Migration Cockpit.
  Cause:
  
  Duplicate Processing Types: The error arises when the same processing type is defined multiple times for a table in the migration or conversion settings. This can happen if the configuration for the data migration is not set up correctly or if there are conflicting entries in the migration settings.
  Incorrect Configuration: The configuration for the data migration might have been altered or not set up properly, leading to multiple entries for the same processing type.
  Data Model Issues: There may be issues with the underlying data model that lead to conflicts in how data is processed.
  
  Solution:
  
  Check Configuration: Review the configuration settings for the data migration or conversion process. Ensure that each processing type for the specified table is unique and correctly defined.
  Remove Duplicates: If you find duplicate entries for the processing type in the configuration, remove or consolidate them to ensure that each processing type is defined only once.
  Review Mapping: Check the mapping of fields and ensure that there are no conflicts in how data is being aggregated or processed.
  Consult Documentation: Refer to SAP documentation or guides related to the specific migration tool you are using (e.g., SAP S/4HANA Migration Cockpit) for best practices and troubleshooting steps.
  Testing: After making changes, run a test migration to ensure that the error is resolved and that data is being processed correctly.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional guidance on handling data migration issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they have found.
  Data Migration Tools: Familiarize yourself with the specific data migration tools and their configurations, as different tools may have different requirements and settings.
  
  If the issue persists after following these steps, consider reaching out to SAP support for further assistance.