How To Fix FAA_POST000 - New General Ledger Accounting is not active; see long text

FAA_POST000 - Overview

• Message type: E = Error

• Message class: FAA_POST - FIAA Posting Messages (Object-Oriented Kernel)

• Message number: 000

• Message text: New General Ledger Accounting is not active; see long text

What causes this issue?

New General Ledger Accounting (FI-GL) is <ZH>not</> active.
However, to be able to use new Asset Accounting, you need to have
activated new General Ledger Accounting.

System Response

It is <ZH>not</> possible to activate new Asset Accounting using the
corresponding Customizing switch (PARALLEL_VAL).

How to fix this error?

If necessary, first activate new General Ledger Accounting. And then
activate the Customizing switch for new Asset Accounting.
For more information, see:
For more information about the prerequisites for using new Asset
Accounting, see Customizing for Asset Accounting under
<DS:SIMG.T093BSN_PV01_DC>Prepare New Asset Accounting</> and the
documentation for the business function <LS>FI-AA, Parallel Valuation</>
(<AB>FIN_AA_PARALLEL_VAL</>).
For more information about activating new General Ledger Accounting and
the prerequisites for this, see Customizing for Financial Accounting
under <DS:SIMG.SIMG_FAGL_ACTIVEC>Activate New General Ledger Accounting
</>.

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.

Smart SAP Assistant

• What is the cause and solution for SAP error message FAA_POST000 - New General Ledger Accounting is not active; see long text ?

  The SAP error message FAA_POST000 indicates that the New General Ledger Accounting (New G/L) is not active in your SAP system. This error typically arises when you attempt to post transactions related to asset accounting (FI-AA) that require the New G/L functionality, but the system is still using the classic General Ledger.
  
  Cause:
  
  New G/L Not Activated: The primary cause of this error is that the New General Ledger Accounting has not been activated in your SAP system.
  
  Configuration Issues: There may be configuration settings that have not been properly set up to support the New G/L.
  System Version: The version of SAP you are using may not support the New G/L, or it may not have been properly upgraded.
  
  
  Solution:
  To resolve the FAA_POST000 error, you can follow these steps:
  
  
  Activate New G/L:
  
  You need to activate the New General Ledger in your SAP system. This is typically done in the SAP Customizing Implementation Guide (IMG).
  Navigate to