How To Fix GW636 - Invalid NI handle

GW636 - Overview

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 636

• Message text: Invalid NI handle

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?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 GW636 - Invalid NI handle ?

  The SAP error message GW636 "Invalid NI handle" typically occurs in the context of SAP Gateway and indicates an issue with the network interface (NI) handle. This error can arise due to various reasons, including configuration issues, network problems, or issues with the SAP Gateway itself.
  Causes:
  
  Network 
  Configuration Issues: Incorrect settings in the network configuration can lead to invalid NI handles.
  Gateway Configuration: Problems with the SAP Gateway configuration or its connection to the backend system.
  Resource Limitations: The system may be running out of resources, such as memory or handles, which can lead to this error.
  Version Compatibility: Incompatibility between different versions of SAP components or between SAP and the underlying operating system.
  Corrupted Gateway Processes: If the gateway processes are corrupted or not functioning correctly, it can lead to this error.
  
  Solutions:
  
  Check Network Configuration: Ensure that the network settings are correctly configured. This includes checking the IP addresses, ports, and any firewall settings that