How To Fix FINS_FI_MIG006 - Source ledger and ledger customizing do not match

SAP Error Message - Details

• Message type: E = Error

• Message class: FINS_FI_MIG - SAP S/4HANA Finance: Data Migration

• Message number: 006

• Message text: Source ledger and ledger customizing do not match

What causes this issue?

The possible reasons are:
The following ledgers which are maintained in the ledger customizing are
not assigned as source ledger:
&V1&&V2&
For the following ledgers, source ledger and target ledger are not the
same:
&V3&&V4&
Check if your customizing is correct. Update the ledger assignment(s) if
required.
To update you the ledger assignments, use the Custuomizing acitivity
<DS:SIMG.FGVL_MIG_SOURCE>Define Source Ledger for Migration of Balances
</>.
If you proceed with the migration without updates and corrections for
your ledger assignment(s), you will lose account balances.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FINS_FI_MIG006 - Source ledger and ledger customizing do not match ?

  The SAP error message FINS_FI_MIG006 indicates that there is a mismatch between the source ledger and the ledger customizing settings in the system during a financial migration process. This error typically arises when the configuration of the ledgers in the system does not align with the data being migrated.
  Cause:
  
  Mismatch in Ledger Configuration: The source ledger defined in the migration process does not match the ledger settings configured in the SAP system. This could be due to differences in the ledger types, settings, or configurations.
  Incorrect Migration Settings: The migration settings may not have been correctly defined, leading to inconsistencies between the source data and the target ledger configuration.
  Data Integrity Issues: The data being migrated may contain references to ledgers that are not properly set up in the target system.
  
  Solution:
  
  
  Check Ledger Customizing:
  
  Go to the SAP Customizing Implementation Guide (IMG) and navigate to Financial Accounting (New) > General Ledger Accounting (New) > Ledgers > Define Ledgers.
  Verify that the ledgers configured in the system match the source ledger you are trying to migrate.
  
  
  
  Review Migration Settings:
  
  Ensure that the migration settings are correctly defined. Check the parameters and mappings used in the migration process to ensure they align with the ledger configurations.
  
  
  
  Data Validation:
  
  Validate the source data to ensure that it does not reference any ledgers that are not configured in the target system. This may involve checking the source data for any discrepancies.
  
  
  
  Adjust Migration Data:
  
  If necessary, adjust the migration data to ensure it aligns with the ledger configurations in the target system. This may involve modifying the source data or changing the target ledger settings.
  
  
  
  Consult Documentation:
  
  Refer to SAP documentation or notes related to the specific migration process you are using. There may be specific guidelines or prerequisites that need to be followed.
  
  
  
  Testing:
  
  After making the necessary adjustments, perform a test migration to ensure that the error does not occur again.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may provide additional insights or solutions related to this error message.
  Transaction Codes: Familiarize yourself with transaction codes such as OB22 (for ledger configuration) and SIMG (for accessing the IMG).
  Migration Tools: If you are using specific migration tools (like the SAP S/4HANA Migration Cockpit), ensure that you are following the recommended procedures and configurations.
  
  If the issue persists after following these steps, it may be beneficial to consult with an SAP expert or reach out to SAP support for further assistance.