Message type: E = Error
Message class:  FAGL_MIG - Migration to New General Ledger Accounting 
Message number: 155
Message text: Different ChtAccts in general ledger (&1) and FI-SL source ledger (&2)
In the Customizing settings for the source ledger in Special Purpose
Ledger (FI-SL) , you have entered a different chart of accounts to that
stored in General Ledger Accounting.
The ledger is <ZH>not </> appropriate as a source ledger for the
migration.
Choose an appropriate source ledger that is based on the same chart of
accounts that you use in General Ledger Accounting.
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 FAGL_MIG155 indicates that there is a discrepancy between the chart of accounts (ChtAccts) used in the General Ledger (G/L) and the one used in the Financial Statement Version (FI-SL) source ledger. This error typically arises during the migration process or when trying to reconcile data between different ledgers.
Cause: Different Chart of Accounts: The primary cause of this error is that the General Ledger and the FI-SL source ledger are configured to use different charts of accounts. This can happen if the ledgers were set up independently or if there were changes made to one of the ledgers without corresponding updates to the other.
Configuration Issues: There may be configuration issues in the system where the mapping between the ledgers is not correctly defined. Data Migration Issues: If data is being migrated from one system to another, inconsistencies in the chart of accounts can lead to this error.
Solution: Check Configuration: Verify
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