How To Fix AC309 - Account &3-&1 not allowed to be defined as reconciliation account

AC309 - Overview

• Message type: E = Error

• Message class: AC - Error messages from Asset Customizing

• Message number: 309

• Message text: Account &3-&1 not allowed to be defined as reconciliation account

What causes this issue?

Account &V1& is defined as a reconciliation account for fixed assets
for chart of accounts &V3& and account determination &V4&. This is not
correct in the circumstances (&V2&).
Keep in mind that the Customizing definition of the given depreciation
area also influences the consistency check of the G/L accounts. This is
particularly true for the posting settings in the depreciation area, if
the accounts are value adjustment (depreciation) accounts.

How to fix this error?

Change the account definition, or assign a different account.

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 AC309 - Account &3-&1 not allowed to be defined as reconciliation account ?

  The SAP error message AC309 indicates that the account you are trying to define as a reconciliation account is not allowed to be set up as such. This typically occurs in the context of configuring accounts in the Asset Accounting (FI-AA) module or when dealing with General Ledger accounts.
  
  Cause:
  The error can arise due to several reasons:
  
  Account Type: The account you are trying to define as a reconciliation account may not be of the correct type. Reconciliation accounts are typically used for accounts that need to aggregate data from sub-ledgers (like Accounts Receivable or Accounts Payable).
  Account Group Settings: The account group associated with the account may not be configured to allow reconciliation accounts.
  Account Configuration: The account may already be defined in a way that conflicts with reconciliation account settings, such as being a non-posting account or a different type of account that cannot serve as a reconciliation account.
  Missing Configuration: The necessary