Message type: E = Error
Message class:  CNV_20200_CHECK - Messages for check functions (company code merge) 
Message number: 137
Message text: FI-SL ledger &1: different settings in the participating company codes
FI-SL ledger &V1& has different settings in the participating company
codes.
Error
A company code merge will lead to inconsistencies on special ledger
level. A company code merge can be done only when all participating
company codes have the same settings. We recommend that you contact your
special ledger consultant in order to identify additional activities.
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_20200_CHECK137 typically occurs during the data migration process, particularly when using the SAP S/4HANA Migration Cockpit or other data migration tools. This error indicates that there are inconsistent settings in the Financial Accounting (FI) Special Ledger (FI-SL) for the participating company codes.
Cause: The error arises when the system detects that the configuration settings for the FI-SL ledger are not uniform across the company codes involved in the migration. This inconsistency can be due to: Different Ledger Settings: The participating company codes may have different configurations for the same ledger, such as different fiscal year variants, currency settings, or account assignment settings. Missing Configuration: One or more company codes may not have the required ledger configuration set up. Inconsistent Data: There may be inconsistencies in the data that is being migrated, such as different account types or structures.
Solution: To resolve this error, you can follow these steps: Check Ledger Configuration: Go to the transaction
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