How To Fix SI026 - The MPX interface is supported under Windows and OS/2 only

SAP Error Message - Details

• Message type: E = Error

• Message class: SI - Implementation Guide - Status control

• Message number: 026

• Message text: The MPX interface is supported under Windows and OS/2 only

Self-Explanatory Message

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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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Smart SAP Assistant

• What is the cause and solution for SAP error message SI026 - The MPX interface is supported under Windows and OS/2 only ?

  The SAP error message SI026 indicates that the MPX (Multi-Processing Extension) interface is only supported on Windows and OS/2 operating systems. This error typically arises when an attempt is made to use the MPX interface on an unsupported operating system.
  Cause:
  The primary cause of this error is that the SAP system is trying to utilize the MPX interface on a platform that does not support it. This could happen if:
  
  The SAP application is running on a non-Windows or non-OS/2 operating system (e.g., Linux, Unix, etc.).
  There is a misconfiguration in the SAP system settings that directs it to use the MPX interface.
  
  Solution:
  To resolve the SI026 error, consider the following steps:
  
  
  Check Operating System Compatibility:
  
  Ensure that the SAP application is running on a supported operating system (Windows or OS/2). If it is running on a different OS, you may need to switch to a supported platform.
  
  
  
  Configuration Review:
  
  Review the configuration settings in the SAP system. Check if there are any settings that specify the use of the MPX interface and change them to use a compatible interface for your operating system.
  
  
  
  Use Alternative Interfaces:
  
  If you are on an unsupported operating system, consider using alternative interfaces that are compatible with your environment. For example, you might use the TCP/IP interface or other supported communication methods.
  
  
  
  Consult Documentation:
  
  Refer to the SAP documentation for your specific version to understand the supported interfaces and configurations. This can provide insights into how to properly set up your environment.
  
  
  
  Contact SAP Support:
  
  If the issue persists after checking the above points, consider reaching out to SAP support for further assistance. They can provide guidance based on your specific system configuration and requirements.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this error or provide additional context.
  System Requirements: Review the system requirements for your version of SAP to ensure compatibility with your operating system.
  Interface Documentation: Familiarize yourself with the documentation for the various interfaces supported by SAP, as this can help in selecting the right one for your environment.
  
  By following these steps, you should be able to resolve the SI026 error and ensure that your SAP system is configured correctly for your operating environment.