How To Fix CNV_20100585 - Multicopy position F already set for field &1-&2 of package &3

CNV_20100585 - Overview

• Message type: E = Error

• Message class: CNV_20100 - Messageclass for chart of account conversion

• Message number: 585

• Message text: Multicopy position F already set for field &1-&2 of package &3

What causes this issue?

According to the chart of accounts mapping a copy scenario ('Copy Rows'
indicator is set) is present.
In such a scenario the original chart of accounts is retained unchanged
in the system, while the target chart of accounts is created and changed
as required. This means that all tables that have the chart of accounts
or subclass (which might contain a chart of accounts) as key field
records must be copied (and the entries for the target chart of accounts
must be changed).

System Response

The system found that for table &V1& such a copying should be done. This
means that the system uses the key field which contains the chart of
accounts to decide whether a given record needs to be duplicated.
The system found that field &V2& of a different package &V3& decides
whether a given record needs to be duplicated. This might be because
several transformation solutions are blended to one package. To ensure a
consistent and correct conversion, you must check the technical settings
for this table.

How to fix this error?

Contact SAP for support.

Procedure for System Administrators

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

Error message extract from SAP system. Copyright SAP SE.

CNV_20100585 - Details

• The SAP error message CNV_20100585, which states "Multicopy position F already set for field &1-&2 of package &3," 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 there is a conflict in the configuration of the data mapping or transformation rules for the specified fields in the specified package.
  
  Cause:
  
  Duplicate Configuration: The error usually arises when there are multiple entries or configurations trying to set the same field in a way that conflicts with each other. This can happen if the same field is being mapped or transformed multiple times within the same package.
  Incorrect Mapping: There may be an issue with how the fields are mapped in the migration package, leading to conflicts in the data transformation rules.
  Data Structure Changes: If there have been changes in the data structure or the migration package, it may