How To Fix GW454 - Communication system error; function getlu failed; check LU

GW454 - Overview

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 454

• Message text: Communication system error; function getlu failed; check LU

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.

Unfortunately, there isn't any extra information in this error notice.

What else can you do?

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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message GW454 - Communication system error; function getlu failed; check LU ?

  The SAP error message GW454 indicates a communication system error related to the function getlu, which typically involves issues with the Logical Unit (LU) in the context of SAP's Gateway communication. This error can occur in various scenarios, often related to issues with the SAP Gateway or the underlying network configuration.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP system and the external system or client can lead to this error.
  Configuration Errors: Incorrect configuration of the SAP Gateway or the Logical Unit (LU) can cause communication failures.
  Resource Availability: The LU may not be available or may be incorrectly defined in the system.
  Authorization Issues: Lack of proper authorizations for the user or system trying to access the LU.
  System Load: High load on the SAP system or the external system can lead to timeouts or failures in communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the