Message type: E = Error
Message class:  CNV_20100 - Messageclass for chart of account conversion 
Message number: 126
Message text: CoA mapping &1 -> &2 with 'Copy Rows': Scenario &3 not released
The mapping &V1& -> &V2& with <ZK>Copy Rows</> indicator set only makes
sense in combination with other <DS:TX.CNV_20100_TX_BASIC_SCEN>basic
scenarios</> with <ZK>Copy Rows</>.
This basic <DS:TX.CNV_20100_TX_SCENARIO_R>scenario R</> is not released
for customers.
Either
Execute the conversion &V1& -> &V2& in a separate conversion and do NOT
set the <ZK>Copy Rows</> indicator.
or
Request an additional SAP service by opening a customer message at
component CA-LT-SRV.
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.
The SAP error message CNV_20100126 typically relates to issues encountered during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or similar tools. This specific error indicates that there is a problem with the mapping of the Chart of Accounts (CoA) during the data migration process.
Cause: The error message indicates that the mapping scenario for the Chart of Accounts (CoA) is not released. This can happen for several reasons: Unreleased Mapping Scenario: The mapping scenario you are trying to use has not been released for use in the migration process.
Configuration Issues: There may be configuration issues in the migration cockpit or the mapping settings that prevent the scenario from being recognized as released. Data Integrity Issues: There may be inconsistencies or missing data in the source or target systems that affect the mapping.
Solution: To resolve this error, you can take the following steps: Check Mapping Scenario Status: Go to the transaction or tool
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