How To Fix WAF110 - System &1 not available. Check your RFC connections.

SAP Error Message - Details

• Message type: E = Error

• Message class: WAF - Wireless Application Framework

• Message number: 110

• Message text: System &1 not available. Check your RFC connections.

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 WAF110 - System &1 not available. Check your RFC connections. ?

  The SAP error message WAF110 indicates that the system specified (denoted as &1) is not available, and it suggests checking your RFC (Remote Function Call) connections. This error typically arises in scenarios where a system is trying to communicate with another SAP system or external system via RFC, but the connection is not established or is failing.
  Causes of WAF110 Error
  
  RFC Connection Issues: The most common cause is that the RFC connection to the target system is not configured correctly or is down.
  Network Problems: There may be network issues preventing communication between the systems.
  Target System Down: The target SAP system may be down for maintenance or experiencing issues.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Configuration Errors: Incorrect settings in the RFC destination configuration (e.g., incorrect IP address, port number, or system ID).
  Firewall Restrictions: Firewalls may be blocking the communication between the systems.
  
  Solutions to WAF110 Error
  
  
  Check RFC Connection:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination that corresponds to the system mentioned in the error message.
  Test the connection using the "Connection Test" button to see if it is working.
  
  
  
  Verify Network Connectivity:
  
  Ensure that the network connection between the two systems is active.
  Use tools like ping or traceroute to check connectivity.
  
  
  
  Check Target System Status:
  
  Verify if the target SAP system is up and running.
  Check for any scheduled maintenance or downtime.
  
  
  
  Review Authorization:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  
  
  
  Inspect Configuration Settings:
  
  Double-check the configuration settings in the RFC destination for accuracy (e.g., hostname, system number, client, etc.).
  
  
  
  Firewall and Security Settings:
  
  Ensure that firewalls or security settings are not blocking the required ports for RFC communication.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that may address known issues related to this error.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM59: To manage and test RFC connections.
  SM21: To check system logs for any related error messages.
  ST22: To check for dumps that may provide more context on the error.
  SICF: To check if the HTTP services are active if the RFC is HTTP-based.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on RFC connections and troubleshooting.
  
  
  SAP Community: Engage with the SAP Community forums for additional insights and solutions from other users who may have encountered similar issues.
  
  
  By following these steps, you should be able to diagnose and resolve the WAF110 error effectively.