How To Fix AAPO520 - Period &1 is already posted

AAPO520 - Overview

• Message type: E = Error

• Message class: AAPO - Asset Accounting - Posting

• Message number: 520

• Message text: Period &1 is already posted

What causes this issue?

You want to perform a depreciation run in period &V1&.
However, a depreciation run was already performed in the later period
&V2&.

System Response

This depreciation run <ZH>cannot</> be performed. Processing is
cancelled.

How to fix this error?

You can perform a depreciation run for period &V2& or a later period.

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.

AAPO520 - Details

• The SAP error message AAPO520 ("Period &1 is already posted") typically occurs in the context of Asset Accounting (FI-AA) when you attempt to post a transaction (such as an asset acquisition, transfer, or retirement) in a period that has already been closed or for which postings have already been made.
  
  Cause:
  
  Closed Posting Period: The most common cause is that the period you are trying to post to has been closed in the system. This means that no further postings can be made to that period.
  Previous Transactions: There may have been previous transactions posted in that period, which prevents any new postings.
  Configuration Settings: The configuration settings in the system may restrict postings to certain periods based on company policy or accounting standards.
  
  
  Solution:
  
  Check Posting Period: Verify the posting period you are trying to use. You can do this by navigating to the relevant transaction in SAP and checking the period settings.
  Open the Period: