How To Fix UMC111 - RFC destination & cannot be reached

SAP Error Message - Details

• Message type: E = Error

• Message class: UMC - General Messages

• Message number: 111

• Message text: RFC destination & 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.

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 UMC111 - RFC destination & cannot be reached ?

  The SAP error message UMC111 indicates that the RFC (Remote Function Call) destination specified cannot be reached. This error typically occurs when there is an issue with the connection between the SAP system and the target system defined in the RFC destination.
  Causes of UMC111 Error
  
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system. This could be due to firewalls, routing issues, or network outages.
  
  
  Incorrect RFC Destination Configuration: The RFC destination may be incorrectly configured. This includes wrong parameters such as the target host, system number, client, user credentials, or connection type.
  
  
  Target System Down: The target system that the RFC destination points to may be down or not running.
  
  
  Authorization Issues: The user credentials used in the RFC destination may not have the necessary authorizations to connect to the target system.
  
  
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  
  Solutions to UMC111 Error
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to check if the target system is reachable from the SAP system.
  Ensure that there are no firewall rules blocking the connection.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Locate the RFC destination that is causing the issue and check its configuration.
  Ensure that the target host, system number, client, and user credentials are correct.
  
  
  
  Check Target System Status:
  
  Ensure that the target system is up and running.
  If possible, log into the target system to verify its status.
  
  
  
  Review User Authorizations:
  
  Check if the user credentials specified in the RFC destination have the necessary authorizations to access the target system.
  You may need to adjust the user roles or permissions.
  
  
  
  Check SAP Gateway Configuration:
  
  Ensure that the SAP Gateway service is running on both the source and target systems.
  You can check the status of the gateway using transaction SMGW.
  
  
  
  Test the RFC Connection:
  
  In transaction SM59, you can test the RFC connection by selecting the destination and clicking on the "Connection Test" button. This will help you identify if the issue persists.
  
  
  
  Related Information
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: SAP Gateway Monitor
  SICF: Maintain HTTP Services (if applicable)
  
  
  
  Logs and Traces:
  
  Check the system logs (SM21) and developer traces (ST22) for any additional error messages that may provide more context.
  
  
  
  SAP Notes: 
  
  Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC connections.
  
  
  
  By following these steps, you should be able to diagnose and resolve the UMC111 error in your SAP environment.