How To Fix 00636 - Invalid NI handle

00636 - Overview

• Message type: E = Error

• Message class: 00 -

• 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?

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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 00636 - Invalid NI handle ?

  The SAP error message "00636 Invalid NI handle" typically relates to issues with the Network Interface (NI) in the SAP system. This error can occur in various contexts, often when there are problems with the communication between the SAP application server and the database or when there are issues with the network configuration.
  Causes:
  
  Network 
  Configuration Issues: Problems with the network settings or configurations can lead to invalid handles.
  Database Connection Problems: If the connection to the database is not properly established or if there are issues with the database itself, this error may occur.
  Resource Limitations: Insufficient resources on the server, such as memory or CPU, can lead to this error.
  Corrupted SAP Kernel: A corrupted or outdated SAP kernel can also cause this error.
  Session Management Issues: Problems with session handling or session timeouts can lead to invalid handles.
  
  Solutions:
  
  Check Network Configuration: Ensure that the network settings are correctly configured. This includes checking the SAP