How To Fix ESH_INTEGRATION063 - System could not be reached via RFC destination &1

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_INTEGRATION - ESH Integration

• Message number: 063

• Message text: System could not be reached via RFC destination &1

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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 ESH_INTEGRATION063 - System could not be reached via RFC destination &1 ?

  The SAP error message ESH_INTEGRATION063 indicates that the system could not be reached via the specified RFC (Remote Function Call) destination. This error typically arises in scenarios where there is an attempt to connect to another SAP system or an external system using an RFC connection, and the connection fails.
  Causes:
  
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system.
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the target system.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  Target System Down: The target system may be down or not available.
  Firewall Restrictions: Firewalls or security settings may be blocking the connection.
  SAP Gateway Issues: The SAP Gateway service may not be running or configured properly.
  
  Solutions:
  
  
  Check RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination that is causing the issue.
  Verify that the connection parameters (such as target host, system number, client, user, and password) are correct.
  
  
  
  Test the RFC Connection:
  
  In transaction SM59, select the RFC destination and use the "Connection Test" option to check if the connection can be established.
  
  
  
  Check Network Connectivity:
  
  Ensure that the network connection between the SAP system and the target system is active.
  Use tools like ping or telnet to check connectivity to the target host and port.
  
  
  
  Review User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  
  
  
  Check Target System Status:
  
  Verify that the target SAP system is up and running. Check for any downtime or maintenance activities.
  
  
  
  Firewall and Security Settings:
  
  Check if there are any firewall rules or security settings that might be blocking the RFC connection.
  
  
  
  SAP Gateway Configuration:
  
  Ensure that the SAP Gateway service is running on both the source and target systems. You can check this using transaction SMGW.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the developer trace files (transaction ST22) for any additional error messages that might provide more context.
  
  
  
  Related Information:
  
  RFC Destinations: RFC destinations are defined in transaction SM59 and are used to establish connections between SAP systems or between SAP and non-SAP systems.
  SAP Notes: Check for any relevant SAP Notes that might address known issues related to RFC connections.
  Documentation: Refer to SAP documentation for detailed information on configuring and troubleshooting RFC connections.
  
  By following these steps, you should be able to identify and resolve the issue causing the ESH_INTEGRATION063 error message.