How To Fix FAGL_LEDGER_CUST084 - Activating "Read Classic GL Accountg" indicator can cause inconsistencies

FAGL_LEDGER_CUST084 - Overview

• Message type: E = Error

• Message class: FAGL_LEDGER_CUST - New General Ledger: Customizing

• Message number: 084

• Message text: Activating "Read Classic GL Accountg" indicator can cause inconsistencies

What causes this issue?

In certain circumstances, activating the <LS>Read Classic General Ledger
Accounting</> indicator can lead to inconsistencies because the programs
that then perform the postings, such as foreign currency valuation, read
the data from GLT0 but write their documents to be posted to new General
Ledger Accounting.

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

See the information in SAP Note 1158830 and deactivate the indicator
where appropriate.
Once the indicator has been deactivated, it is no longer offered for
activation.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message FAGL_LEDGER_CUST084 - Activating "Read Classic GL Accountg" indicator can cause inconsistencies ?

  The SAP error message FAGL_LEDGER_CUST084 indicates that there is a potential inconsistency that may arise when activating the "Read Classic GL Accounting" indicator in the context of the General Ledger (G/L) accounting. This error typically occurs in the New General Ledger (New GL) environment when there are existing configurations or data that may conflict with the new settings.
  
  Cause:
  The error is triggered when you attempt to activate the "Read Classic GL Accounting" indicator for a ledger that already has data or configurations that are not compatible with the classic G/L accounting. This can happen due to:
  
  Existing Data: If there are already postings in the ledger that were made using the classic G/L, activating this indicator can lead to inconsistencies in how data is read and processed.
  Configuration Conflicts: The settings in the New GL may not align with the requirements of classic G/L accounting, leading to potential data integrity issues.
  Incompatibility with Other