How To Fix SCWN250 - Target system (destination &1) not available; timeout after &2 seconds

SAP Error Message - Details

• Message type: E = Error

• Message class: SCWN - Messages Note installation and management

• Message number: 250

• Message text: Target system (destination &1) not available; timeout after &2 seconds

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message SCWN250 - Target system (destination &1) not available; timeout after &2 seconds ?

  The SAP error message SCWN250 indicates that the target system (destination) is not available, and the connection attempt has timed out after a specified number of seconds. This error typically occurs in scenarios involving system connections, such as when using the SAP Cloud Platform, SAP Process Integration (PI), or when trying to connect to an external system.
  Causes:
  
  Network Issues: There may be network connectivity problems between the source and target systems.
  Target System Down: The target system may be down or not responding.
  Incorrect Configuration: The destination configuration in the SAP system may be incorrect (e.g., wrong hostname, port, or protocol).
  Firewall Restrictions: Firewalls or security settings may be blocking the connection to the target system.
  Timeout Settings: The timeout settings may be too short for the connection to be established, especially if the target system is under heavy load.
  DNS Resolution Issues: The hostname of the target system may not be resolving correctly.
  
  Solutions:
  
  Check Network Connectivity: Use tools like ping or traceroute to check if the target system is reachable from the source system.
  Verify Target System Status: Ensure that the target system is up and running. Check logs or system status if you have access.
  Review Destination Configuration: Go to the transaction code SM59 (for RFC destinations) and verify that the configuration settings (hostname, port, etc.) are correct.
  Check Firewall Settings: Ensure that there are no firewall rules blocking the connection to the target system. Consult with your network/security team if necessary.
  Increase Timeout Settings: If the target system is slow to respond, consider increasing the timeout settings in the destination configuration.
  DNS Configuration: Ensure that the DNS settings are correct and that the hostname can be resolved to the correct IP address.
  
  Related Information:
  
  Transaction Codes:
  
  SM59: For managing RFC destinations.
  SICF: For checking HTTP services.
  ST22: For analyzing dumps if the error is related to ABAP programs.
  
  
  Logs: Check the system logs (SM21) and the application logs (SLG1) for any additional error messages that might provide more context.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  
  If the problem persists after checking the above points, it may be beneficial to consult with your SAP Basis team or SAP support for further assistance.