How To Fix SMD100 - RFC Destination &1: System/Communication Failure

SAP Error Message - Details

• Message type: E = Error

• Message class: SMD - Solution Manager Documents

• Message number: 100

• Message text: RFC Destination &1: System/Communication Failure

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 SMD100 - RFC Destination &1: System/Communication Failure ?

  The SAP error message SMD100, which indicates "RFC Destination &1: System/Communication Failure," typically arises when there is an issue with the Remote Function Call (RFC) connection between SAP systems. This error can occur in various scenarios, such as during system monitoring, data transfer, or when executing remote function modules.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems, such as firewalls blocking the connection or network outages.
  Incorrect RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect parameters like the target system's IP address, port number, or user credentials.
  Target System Down: The target SAP system may be down or not reachable due to maintenance or other issues.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  SAP Gateway Issues: Problems with the SAP Gateway on either the source or target system can lead to communication failures.
  Timeout Settings: If the timeout settings for the RFC connection are too low, it may lead to premature termination of the connection.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the two systems. You can use tools like ping or traceroute to diagnose network issues.
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the source system.
  Check the configuration of the RFC destination (e.g., TCP/IP settings, user credentials).
  Test the connection using the "Test Connection" button in the RFC destination configuration.
  
  
  Check Target System Status: Ensure that the target SAP system is up and running. You can check this by logging into the target system or checking its status in the SAP Solution Manager.
  Review User Authorizations: Ensure that the user specified in the RFC destination has the necessary authorizations to perform the required actions in the target system.
  Check SAP Gateway: Verify that the SAP Gateway is running on both the source and target systems. You can check the status using transaction SMGW.
  Adjust Timeout Settings: If necessary, increase the timeout settings for the RFC connection in the RFC destination configuration.
  
  Related Information:
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SMGW: Monitor SAP Gateway
  SICF: Check 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 about the failure.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication failures.
  
  By following these steps, you should be able to diagnose and resolve the SMD100 error effectively. If the problem persists, consider reaching out to SAP support for further assistance.