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

FINS_FI_MIG006 - Overview

• 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.

FINS_FI_MIG006 - Details

• 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