How To Fix FAGL_MIG143 - Partner field &2 not found for field &1 in source ledger &3

FAGL_MIG143 - Overview

• Message type: E = Error

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

• Message number: 143

• Message text: Partner field &2 not found for field &1 in source ledger &3

What causes this issue?

In Customizing for New General Ledger Accounting, partner field &V2& is
defined for field &V1&. However, this partner field is <ZH>not</> found
in the selected source ledger.

System Response

The ledger is only partially fulfills the requirements as a source
ledger for the migration. No partner value is transferred for this
document splitting characteristic to the items to be migrated.

How to fix this error?

Select a source ledger in Special Purpose Ledger that contains all of
the required document splitting characteristics. If such a ledger does
not exist, you have to select a different migration type.

Procedure for System Administrators

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_MIG143 - Details

• The SAP error message FAGL_MIG143 indicates that there is an issue with the partner field in the context of a migration or data transfer process, particularly when dealing with General Ledger (G/L) accounts. This error typically arises during the migration of data from a classic G/L to the new G/L in SAP S/4HANA or during the use of the Migration Cockpit.
  
  Cause:
  The error message "Partner field &2 not found for field &1 in source ledger &3" suggests that the system is unable to find the specified partner field (represented by &2) for the given field (represented by &1) in the source ledger (represented by &3). This can occur due to several reasons:
  
  Missing Configuration: The partner field may not be configured correctly in the source ledger.
  Data Inconsistency: There may be inconsistencies or missing entries in the data being migrated.
  Incorrect Mapping: The mapping of fields between the source and target ledgers may not