Message type: E = Error
Message class:  CNV - Conversion: Messages for Conversion Services (CNCC) 
Message number: 791
Message text: Potentially wrong duplicate processing type selected for table &1
The table &V1& contains both key and non-key fields which are relevant
for the conversion. In that case you should bear in mind that the values
of the fields in the data part, that will not be aggregated, will be
taken from the table entry which is already in the database. For this
reason the value of the converted field depends on the order of
processing of the table entries.
To have a full control over what is written to the database the priority
routine should be defined for this table.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV791 indicates that there is a potential issue with the duplicate processing type selected for a specific table during a data migration or conversion process. This error typically arises in the context of SAP's data migration tools, such as the SAP S/4HANA Migration Cockpit or other data conversion scenarios.
Cause: The error occurs when the system detects that the selected duplicate processing type for a particular table is not appropriate or could lead to inconsistencies in the data being processed. This can happen due to: Incorrect Configuration: The duplicate processing type may not be suitable for the specific table or data being migrated. Data Integrity Issues: There may be existing duplicates in the source data that conflict with the selected processing type. Incompatibility: The selected processing type may not align with the business rules or requirements for the data in that table.
Solution: To resolve the CNV791 error, you can take the following
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