How To Fix S#355 - No systems available

SAP Error Message - Details

• Message type: E = Error

• Message class: S# -

• Message number: 355

• Message text: No systems available

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.

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 S#355 - No systems available ?

  The SAP error message S#355 "No systems available" typically indicates that the SAP system is unable to find any available application servers for the user to connect to. This can occur in various scenarios, such as during logon attempts or when trying to access specific transactions or services.
  Causes:
  
  Network Issues: There may be network connectivity problems between the client and the SAP application servers.
  System Configuration: The SAP system may not be properly configured, or the application servers may not be registered correctly in the SAP message server.
  Server Downtime: The application servers may be down for maintenance or due to unexpected failures.
  Load Balancing Issues: If a load balancer is used, it may not be routing requests correctly to the available servers.
  Client Configuration: The SAP GUI or client configuration may be incorrect, leading to an inability to connect to the available systems.
  Authorization Issues: The user may not have the necessary authorizations to access the available systems.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the client and the SAP servers. You can use tools like ping or tracert to diagnose network issues.
  Verify System Configuration: Check the SAP system configuration, particularly the instance profiles and the message server settings. Ensure that the application servers are correctly registered.
  Check Server Status: Verify that the application servers are up and running. You can do this by checking the SAP management console or using transaction codes like SM51 (to view active instances).
  Review Load Balancer Settings: If a load balancer is in use, ensure that it is configured correctly and that it is routing traffic to the available application servers.
  Client Configuration: Review the SAP GUI configuration. Ensure that the correct system ID, instance number, and message server are specified in the connection settings.
  User Authorizations: Check the user authorizations to ensure that the user has the necessary permissions to access the system.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SM51 (to check active application servers), SM12 (to check for locks), and SM21 (to view system logs) for troubleshooting.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the S#355 error.
  System Logs: Review system logs for any error messages or warnings that may provide additional context for the issue.
  
  If the problem persists after trying the above solutions, it may be necessary to contact your SAP Basis team or SAP support for further assistance.