How To Fix CRM_UTILITY_UIS300 - RFC destination &1 cannot be reached

SAP Error Message - Details

• Message type: E = Error

• Message class: CRM_UTILITY_UIS -

• Message number: 300

• Message text: RFC destination &1 cannot be reached

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 CRM_UTILITY_UIS300 - RFC destination &1 cannot be reached ?

  The SAP error message "CRM_UTILITY_UIS300 RFC destination &1 cannot be reached" typically indicates that the system is unable to connect to the specified RFC (Remote Function Call) destination. This can occur for various reasons, and here are some common causes, solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system defined in the RFC destination.
  Incorrect RFC Destination Configuration: The RFC destination may be incorrectly configured, including wrong connection parameters (like hostname, service, or system number).
  Target System Down: The target system may be down or not running.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Firewall Restrictions: Firewalls may be blocking the connection to the target system.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to check if the target system is reachable from the SAP system.
  Ensure that there are no network issues or outages.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination in question and check its configuration.
  Ensure that the connection parameters (like the target host, system number, and client) are correct.
  
  
  
  Test the RFC Connection:
  
  In transaction SM59, select the RFC destination and use the "Connection Test" option to verify if the connection can be established.
  
  
  
  Check Target System Status:
  
  Ensure that the target SAP system is up and running.
  Check if the necessary services are active.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  
  
  
  Firewall and Security Settings:
  
  Check if there are any firewall rules that might be blocking the connection.
  Ensure that the necessary ports are open for communication.
  
  
  
  SAP Gateway Configuration:
  
  Ensure that the SAP Gateway service is running on both the source and target systems.
  Check the gateway logs for any errors.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage and test RFC destinations.
  SMGW: To monitor the SAP Gateway.
  SICF: To check and manage HTTP services.
  
  
  
  Logs and Traces:
  
  Check the system logs (SM21) and developer traces (ST22) for any related error messages that might provide more context.
  
  
  
  SAP Notes: 
  
  Search for relevant SAP Notes in the SAP Support Portal that might address specific issues related to RFC connections.
  
  
  
  By following these steps, you should be able to diagnose and resolve the issue related to the RFC destination not being reachable. If the problem persists, consider reaching out to your SAP Basis team or SAP support for further assistance.