Message type: E = Error
Message class:  FAGL_MIG - Migration to New General Ledger Accounting 
Message number: 400
Message text: Bal. carryfwrd for ledger &1 CoCode &2 not possible (migration to New GL)
For company code &V2& in ledger &V1&, there is a migration plan for new
General Ledger Accounting with migration date &V3& in fiscal year &V4&.
Consequently, the balance carryforward program cannot be run for fiscal
year &V4& or for any fiscal years preceding it.
Processing is terminated.
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_MIG400 indicates that there is an issue with the balance carryforward process during the migration to the New General Ledger (New GL). This error typically arises when there are inconsistencies or missing data that prevent the system from successfully carrying forward balances for a specific ledger and company code. Causes of FAGL_MIG400 Missing or Incomplete Data: The balances for the specified ledger and company code may not be fully populated or may have inconsistencies in the underlying data. Incorrect Configuration: The New GL configuration may not be set up correctly, leading to issues during the migration process. Open Items: There may be open items in the accounts that need to be cleared before the carryforward can be executed. Period Closing Issues: The fiscal year or periods may not be closed properly, which can prevent the carryforward process. Incompatible Settings: The settings for the ledgers or company codes may not be compatible with
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