How To Fix DMCLG383 - RFC communication error &2 (RFC destination &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: DMCLG - DMC Tool Development

• Message number: 383

• Message text: RFC communication error &2 (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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DMCLG383 - RFC communication error &2 (RFC destination &1) ?

  The SAP error message DMCLG383 indicates an RFC (Remote Function Call) communication error. This error typically occurs when there is a problem with the connection between the SAP system and the RFC destination specified. Here’s a breakdown of the cause, potential solutions, and related information:
  Cause:
  
  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 not be configured correctly in the SAP system (e.g., incorrect hostname, port, or logon credentials).
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations to access the target system.
  Target System Down: The target system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls may be blocking the communication between the two systems.
  SAP Gateway Issues: The SAP Gateway service may not be running or may be misconfigured.
  
  Solution:
  
  
  Check Network Connectivity:
  
  Use tools like ping or telnet to check if the target system is reachable from the SAP server.
  Ensure that there are no network issues or outages.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination (e.g., connection type, target host, system number, client, user, and password).
  Test the connection using the "Connection Test" button in SM59.
  
  
  
  Check User Authorizations:
  
  Ensure that the user specified in the RFC destination has the necessary authorizations to perform the required actions on the target system.
  
  
  
  Check Target System Status:
  
  Verify that the target SAP system is up and running.
  Check for any scheduled maintenance or downtime.
  
  
  
  Review Firewall Settings:
  
  Ensure that the necessary ports are open and that there are no firewall rules blocking the communication.
  
  
  
  Check SAP Gateway:
  
  Ensure that the SAP Gateway service is running on both the source and target systems.
  Check the gateway logs for any errors.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the developer trace files (transaction ST11) for any additional error messages that may provide more context.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SM21: System Log
  ST22: Dump Analysis
  ST11: Developer Traces
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication errors.
  
  
  Documentation: Review the SAP documentation for RFC connections and troubleshooting steps.
  
  
  By following these steps, you should be able to identify and resolve the cause of the DMCLG383 RFC communication error. If the issue persists, consider reaching out to your SAP Basis team or SAP support for further assistance.