How To Fix SAMQP_MESSAGE024 - Link is not established.

SAP Error Message - Details

• Message type: E = Error

• Message class: SAMQP_MESSAGE -

• Message number: 024

• Message text: Link is not established.

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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SAMQP_MESSAGE024 - Link is not established. ?

  The SAP error message SAMQP_MESSAGE024, which states "Link is not established," typically occurs in the context of SAP's messaging system, particularly when there are issues with the connection between different SAP systems or components, such as the SAP Application Server and the Message Server.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems or between the application server and the message server.
  Configuration Errors: Incorrect configuration settings in the SAP system, such as the message server settings or the instance profile, can lead to this error.
  Message Server Down: The message server may be down or not running, preventing the establishment of a link.
  Firewall Restrictions: Firewalls or security settings may be blocking the necessary ports for communication between the systems.
  Resource Limitations: The system may be experiencing resource limitations, such as memory or CPU constraints, affecting its ability to establish connections.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems. You can use tools like ping or traceroute to diagnose network issues.
  Verify Configuration Settings: Review the configuration settings in the SAP system, particularly in the instance profile and the message server settings. Ensure that the parameters are correctly set.
  Restart Message Server: If the message server is down, restart it. You can do this through the SAP Management Console (SAP MMC) or using command-line tools.
  Check Firewall Settings: Ensure that the necessary ports for SAP communication (typically port 3600 for the message server) are open and not blocked by firewalls.
  Monitor System Resources: Check the system resources (CPU, memory, etc.) to ensure that the system is not overloaded. If necessary, optimize the system or allocate more resources.
  Review Logs: Check the SAP system logs (transaction SM21) and the developer traces (transaction ST22) for any additional error messages that may provide more context about the issue.
  
  Related Information:
  
  SAP Notes: Check the SAP Support Portal for any 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.
  Documentation: Refer to the official SAP documentation for details on configuring the message server and troubleshooting connectivity issues.
  
  If the problem persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further assistance.