How To Fix AAPO002 - Error in internal table. Line items without document header.

AAPO002 - Overview

• Message type: E = Error

• Message class: AAPO - Asset Accounting - Posting

• Message number: 002

• Message text: Error in internal table. Line items without document header.

What causes this issue?

An error was found during the check of an asset document stored in an
internal table (ANEP without ANEK).

How to fix this error?

Probably there is a program error. Contact your system administrator.

Error message extract from SAP system. Copyright SAP SE.

AAPO002 - Details

• The SAP error message AAPO002, which states "Error in internal table. Line items without document header," typically occurs in the context of Asset Accounting (FI-AA) when there is an inconsistency in the data being processed. This error indicates that there are line items in the internal table that do not have a corresponding document header, which is essential for the proper processing of financial transactions.
  Causes:
  
  Data Inconsistency: The most common cause is that the line items being processed do not have a valid document header. This can happen if the document was not created correctly or if there was an error during the posting process.
  Custom Code Issues: If there are custom programs or enhancements that manipulate asset accounting data, they may inadvertently create line items without proper headers.
  System Bugs: Occasionally, bugs in the SAP system or specific patches may lead to this error.
  Incorrect Configuration: Configuration settings in Asset Accounting may lead