How To Fix GHO_NET021 - Link &1: medium '&2' does not exist

SAP Error Message - Details

• Message type: E = Error

• Message class: GHO_NET - Message class for Production Network Modelling

• Message number: 021

• Message text: Link &1: medium '&2' does not exist

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 GHO_NET021 - Link &1: medium '&2' does not exist ?

  The SAP error message GHO_NET021 indicates that there is an issue with a network link, specifically that a medium (like a network interface or connection) does not exist. This error typically arises in the context of SAP's Global Host Operations (GHO) or when dealing with network configurations.
  Cause:
  
  Non-existent Medium: The specified medium (e.g., a network interface or connection) does not exist in the system. This could be due to a misconfiguration or an attempt to reference a medium that has been deleted or never created.
  Incorrect Configuration: The configuration settings for the network link may be incorrect, leading to the system being unable to find the specified medium.
  Typographical Error: There may be a typo in the medium name or identifier being referenced in the configuration.
  
  Solution:
  
  Verify Medium Existence: Check the configuration settings in the SAP system to ensure that the medium specified in the error message actually exists. You can do this by navigating to the relevant configuration area in the SAP GUI.
  Correct Configuration: If the medium does not exist, you may need to create it or correct the configuration to point to an existing medium. This may involve creating a new network interface or adjusting the settings of an existing one.
  Check for Typos: Review the medium name or identifier for any typographical errors. Ensure that it matches exactly with what is defined in the system.
  Consult Documentation: Refer to SAP documentation or help resources for guidance on configuring network links and mediums. This can provide insights into the correct setup and any prerequisites that may be required.
  System Logs: Check system logs for additional error messages or warnings that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Look for relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Technical Support: If the issue persists, consider reaching out to SAP Support for assistance, providing them with the error message and any relevant configuration details.
  
  By following these steps, you should be able to identify the cause of the GHO_NET021 error and implement a solution to resolve it.