How To Fix CMS_TR006 - COMMUNICATION_FAILURE for RFC call &1 (destination &2): &3&4

SAP Error Message - Details

• Message type: E = Error

• Message class: CMS_TR - KPRO: Content Management Service (Transport Connection)

• Message number: 006

• Message text: COMMUNICATION_FAILURE for RFC call &1 (destination &2): &3&4

What causes this issue?

Calling the RFC function &v1& (destination &v2&) triggered the
exception COMMUNICATION_FAILURE (&v3&&v4&).

System Response

The function is cancelled.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CMS_TR006 - COMMUNICATION_FAILURE for RFC call &1 (destination &2): &3&4 ?

  The SAP error message CMS_TR006 COMMUNICATION_FAILURE for RFC call &1 (destination &2): &3&4 indicates that there is a communication failure when trying to make a Remote Function Call (RFC) to a specified destination. This error can occur for various reasons, and understanding the cause is essential for troubleshooting.
  Possible Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC call.
  Destination Configuration: The RFC destination may not be configured correctly in the SAP system (transaction SM59).
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations.
  Service Unavailability: The target 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.
  Incorrect Parameters: The parameters passed in the RFC call may be incorrect or not matching the expected format.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the target system is reachable from the source system.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 and check the configuration of the RFC destination.
  Ensure that the connection type, target host, and system number are correctly configured.
  Test the connection using the "Connection Test" option in SM59.
  
  
  
  Check User Authorizations:
  
  Ensure that the user used for the RFC call has the necessary authorizations in both the source and target systems.
  Check the user roles and profiles to confirm that they include the required permissions.
  
  
  
  Check Target System Status:
  
  Verify that the target SAP system is up and running.
  Check for any scheduled maintenance or downtime that might affect availability.
  
  
  
  Review Firewall and Security Settings:
  
  Ensure that firewalls are configured to allow traffic between the two systems on the required ports.
  Consult with your network/security team if necessary.
  
  
  
  Review RFC Call Parameters:
  
  Check the parameters being passed in the RFC call to ensure they are correct and valid.
  Review the function module being called to ensure it is available and correctly implemented.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC Destinations
  SM21: System Log for error messages
  ST22: Dump analysis for ABAP runtime errors
  SICF: Check HTTP services if applicable
  
  
  
  Logs and Traces:
  
  Check the system logs (SM21) for any related error messages.
  Use transaction ST01 to activate the trace for authorization checks or RFC calls to gather more information.
  
  
  
  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 identify and resolve the cause of the CMS_TR006 COMMUNICATION_FAILURE error.