How To Fix CMS212 - Communication failure with RFC call (destination &1): &2&3&4

SAP Error Message - Details

• Message type: E = Error

• Message class: CMS - KPro: Content Management Service

• Message number: 212

• Message text: Communication failure with RFC call (destination &1): &2&3&4

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message CMS212 - Communication failure with RFC call (destination &1): &2&3&4 ?

  The SAP error message CMS212 indicates a communication failure with an RFC (Remote Function Call) destination. This error can occur for various reasons, and understanding the cause is essential for troubleshooting. Here’s a breakdown of potential 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 parameters such as the target host, system number, or client.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to access the target system.
  Target System Down: The target SAP system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between the systems.
  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 source system.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  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 settings.
  
  
  
  Review 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.
  
  
  
  Inspect Firewall Settings:
  
  Ensure that the necessary ports for RFC communication are open on both the source and target systems.
  Consult with your network/security team if needed.
  
  
  
  Check SAP Gateway:
  
  Ensure that the SAP Gateway service is running on both systems.
  You can check the status of the gateway using transaction SMGW.
  
  
  
  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:
  
  RFC Destinations: RFC destinations are defined in transaction SM59 and are used to configure connections to other SAP systems or external systems.
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication failures.
  Documentation: Review SAP documentation for detailed information on configuring and troubleshooting RFC connections.
  
  By systematically checking these areas, you should be able to identify and resolve the cause of the CMS212 error message.