Message type: E = Error
Message class:  FAGL_MIG - Migration to New General Ledger Accounting 
Message number: 022
Message text: Error during validation; changes to field &1 are not permitted
A field has been changed in the <ZK>Business Add In (BAdI)</>. However,
changes to BAdI fields that are already filled are not permitted.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Check the implementation of the BAdI.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message FAGL_MIG022 typically occurs during the migration process when there are attempts to make changes to a field that is not allowed to be modified. This error is often related to the migration of financial data, particularly when transitioning from the classic General Ledger (G/L) to the new G/L in SAP.
Cause: The error message FAGL_MIG022 indicates that there is an attempt to change a field that is restricted during the migration process. This can happen due to several reasons, including: Field Restrictions: Certain fields in the financial documents are locked for changes during the migration process to ensure data integrity. Data Inconsistencies: There may be inconsistencies in the data that violate the rules set for the migration.
Configuration Issues: The system configuration may not allow changes to specific fields during the migration.
Solution: To resolve the FAGL_MIG022 error, you can take the following steps: Check Migration Settings: Review the migration settings and ensure that
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