How To Fix FAGL_MIG066 - Not possible to reset clearing with clearing date before migration date

FAGL_MIG066 - Overview

• Message type: E = Error

• Message class: FAGL_MIG - Migration to New General Ledger Accounting

• Message number: 066

• Message text: Not possible to reset clearing with clearing date before migration date

What causes this issue?

You have performed a migration into New General Ledger Accounting for
ledger &V4& in company code &V3&. This means that it is no longer
possible to reset the clearing of an item with a clearing date (&V1&)
<ZH>prior to</> the migration date (&V2&).
You can only reset clearing actions that were posted <ZH>after </>the
migration date &V2& in New General Ledger Accounting.

Procedure for System Administrators

You can change this error message into a warning message instead.
However, to do this, you first need to ensure that the open items are
also included in the worklist for open items after the clearing has been
reset (see <DS:SIMG.FAGL_MIG_OPITEMS_FIL>Create Worklist for Open Items
</>).
To change the message, choose in the Implementation Guide for the Global
Settings in Financials <DS:SIMG.SIMG_CFORFBOBA5BELE>Change Message
Control for Document Processing</>.
You can find the work area and message number in the technical
information.

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.

FAGL_MIG066 - Details

• The SAP error message FAGL_MIG066 indicates that there is an attempt to reset a clearing document with a clearing date that is earlier than the migration date. This typically occurs during the migration process to the new General Ledger (G/L) accounting in SAP, particularly when using the New G/L functionality.
  
  Cause:
  The error arises because the system enforces a restriction on clearing documents that were created before the migration date. The migration date is the point in time when the system transitioned from the classic G/L to the new G/L. Any clearing documents with dates prior to this migration date cannot be reset or modified, as it would violate the integrity of the financial data post-migration.
  
  Solution:
  To resolve this error, consider the following steps:
  
  
  Check Migration Date: Verify the migration date set in your system. This date is crucial as it marks the point after which all transactions are considered in the new G/L.
  
  
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