How To Fix /PF1/MSG_EH_P306 - No server available; resource error

SAP Error Message - Details

• Message type: E = Error

• Message class: /PF1/MSG_EH_P -

• Message number: 306

• Message text: No server available; resource error

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /PF1/MSG_EH_P306 - No server available; resource error ?

  The SAP error message /PF1/MSG_EH_P306 No server available; resource error typically indicates that the system is unable to find an available server to process the request. This can occur in various scenarios, particularly in environments that utilize SAP's Enterprise Services or when dealing with background jobs and application servers.
  Causes:
  
  Server Overload: The application servers may be overloaded with requests, leading to resource exhaustion.
  Network Issues: There may be network connectivity problems between the client and the application servers.
  Configuration Issues: Incorrect configuration of the SAP system, such as the instance profile or load balancing settings.
  Resource Limitations: Insufficient resources (CPU, memory) allocated to the application servers.
  Server Down: One or more application servers may be down or not registered in the SAP system.
  Authorization Issues: The user may not have the necessary authorizations to access the required resources.
  
  Solutions:
  
  Check Server Status: Use transaction code SM51 to check the status of application servers. Ensure that all required servers are up and running.
  Monitor System Load: Use transaction code SM66 to monitor the load on the servers. If a server is overloaded, consider redistributing the workload.
  Review Configuration: Check the instance profile and load balancing settings in transaction RZ10 and RZ12 to ensure they are correctly configured.
  Check Network Connectivity: Ensure that there are no network issues affecting communication between the client and the application servers.
  Resource Allocation: If resource limitations are identified, consider increasing the resources allocated to the application servers.
  Review Authorizations: Ensure that the user has the necessary authorizations to access the required resources.
  Restart Services: If a server is down, restart the relevant services or instances.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. You can search for relevant notes in the SAP Support Portal.
  System Logs: Review system logs (transaction SM21) for any additional error messages or warnings that may provide more context.
  Performance Monitoring: Use transaction ST03N to analyze performance and identify any bottlenecks in the system.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar 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 investigation.