How To Fix R[202 - Communication error with RFC call in system &

SAP Error Message - Details

• Message type: E = Error

• Message class: R[ - Messages for BW AddOn of Report/Report Interface

• Message number: 202

• Message text: Communication error with RFC call in system &

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 R[202 - Communication error with RFC call in system & ?

  The SAP error message "R[202 Communication error with RFC call in system &" typically indicates that there is a communication issue when trying to make a Remote Function Call (RFC) to another SAP system or an external system. This error can arise from various causes, and understanding the underlying issues is crucial for troubleshooting.
  Causes:
  
  Network Issues: There may be network connectivity problems between the systems involved. This could be due to firewalls, routing issues, or network outages.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect parameters such as the target system's IP address, port number, or user credentials.
  System Availability: The target system may be down or not available for communication. This could be due to maintenance, system crashes, or other operational issues.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to perform the requested operation.
  SAP Gateway Issues: Problems with the SAP Gateway service on either the source or target system can lead to communication errors.
  Timeout Settings: If the RFC call takes too long to respond, it may time out, leading to this error.
  
  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: Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination. Ensure that all parameters are correct, including the connection type, target host, and logon credentials.
  Check System Status: Verify that the target system is up and running. You can do this by trying to log in to the target system or checking its status in the SAP system monitoring tools.
  Review Authorizations: Ensure that the user credentials used for the RFC call have the necessary authorizations to execute the function module or transaction being called.
  Check SAP Gateway: Ensure that the SAP Gateway is running on both systems. You can check the status of the gateway using transaction SMGW.
  Adjust Timeout Settings: If the RFC call is timing out, consider increasing the timeout settings in the RFC destination configuration.
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: To manage RFC destinations.
  SMGW: To monitor the SAP Gateway.
  ST22: To check for dumps that may provide more context on the error.
  SMLG: To check logs related to the gateway.
  
  
  
  Logs and Traces: Check the system logs (transaction SM21) and the developer traces (transaction ST01) for more detailed error messages that can help diagnose the issue.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication errors.
  
  
  By systematically checking these areas, you should be able to identify and resolve the cause of the "R[202 Communication error with RFC call in system &" error.