How To Fix MM_PUR_PO_EXT_MSG028 - SAP S/4HANA system is not active as a hub system.

MM_PUR_PO_EXT_MSG028 - Overview

• Message type: E = Error

• Message class: MM_PUR_PO_EXT_MSG - Message class for Backend PO Extraction

• Message number: 028

• Message text: SAP S/4HANA system is not active as a hub system.

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

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MM_PUR_PO_EXT_MSG028 - Details

• The error message MM_PUR_PO_EXT_MSG028 in SAP S/4HANA indicates that the system is not configured as a hub system, which is necessary for certain functionalities related to purchase orders and external procurement processes. This error typically arises when trying to execute operations that require the system to act as a central hub for managing purchase orders, especially in scenarios involving integration with other systems or applications.
  
  Cause:
  
  System Configuration: The SAP S/4HANA system is not set up as a hub system. This could be due to missing configurations or settings that enable the system to function in this capacity.
  Integration Issues: The error may occur if there are attempts to connect or integrate with other systems (like SAP Ariba, SAP Fieldglass, etc.) that require the hub system to be active.
  Transport Layer Issues: If the transport layer is not correctly configured, it may lead to this error when trying to process purchase orders.
  
  
  Solution:
  
  
  Check System Configuration:
  
  Ensure