How To Fix AG023 - Error in calling up function '&1' in APO server '&2': &3

AG023 - Overview

• Message type: E = Error

• Message class: AG - Nachrichten ATP-Server

• Message number: 023

• Message text: Error in calling up function '&1' in APO server '&2': &3

What causes this issue?

A system error or communication error occurred while calling up a
function in the APO server.

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?

Inform the relevant system administrator or SAP Support.

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 AG023 - Error in calling up function '&1' in APO server '&2': &3 ?

  The SAP error message AG023 indicates that there is an issue when trying to call a function in the Advanced Planning and Optimization (APO) server. The message typically includes placeholders for the function name (&1), the APO server name (&2), and additional error details (&3). 
  Causes:
  
  Network Issues: There may be connectivity problems between the SAP ERP system and the APO server.
  Configuration Errors: Incorrect configuration settings in the APO system or in the connection settings between the systems.
  Authorization Issues: The user may not have the necessary authorizations to execute the function in the APO server.
  Function Module Errors: The function being called may not exist, or there may be issues with the function module itself (e.g., it may be inactive or have errors).
  System Performance: The APO server may be experiencing performance issues, leading to timeouts or failures in processing requests.
  Data Issues: There may be issues with the data being passed to the