How To Fix FDT_BRS101 - Communication failure during RFC call: &1 &2 &3 &4

SAP Error Message - Details

• Message type: E = Error

• Message class: FDT_BRS - BRFplus Business Rule Services

• Message number: 101

• Message text: Communication failure during RFC call: &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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Also, review the in-depth Common Questions & Answers listed below; you could discover a solution there or be able to connect with others who have faced similar challenges.

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Smart SAP Assistant

• What is the cause and solution for SAP error message FDT_BRS101 - Communication failure during RFC call: &1 &2 &3 &4 ?

  The SAP error message FDT_BRS101 indicates a communication failure during a Remote Function Call (RFC). This error can occur in various scenarios, often related to issues with connectivity between systems, configuration problems, or network issues. Here’s a breakdown of the potential causes, solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP systems involved in the RFC call.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system. This includes incorrect settings for the target system's IP address, port, or user credentials.
  Authorization Issues: The user credentials used for the RFC call may not have the necessary authorizations to perform the requested operation.
  System Availability: 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.
  Timeout Settings: The RFC call may be timing out due to long processing times or network latency.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the systems can communicate over the network.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI and check the configuration of the RFC destination.
  Ensure that the connection type, target host, and system number are correctly configured.
  Test the connection from SM59 to see if it is successful.
  
  
  
  Check User Authorizations:
  
  Ensure that the user credentials used for the RFC call have the necessary authorizations to access the target system and perform the required operations.
  
  
  
  System Availability:
  
  Check if the target SAP system is up and running. You can do this by logging into the target system or checking system status.
  
  
  
  Firewall and Security Settings:
  
  Ensure that any firewalls between the systems allow traffic on the required ports for RFC communication (typically port 3200 for SAP systems).
  
  
  
  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.
  SM21: To check system logs for any related error messages.
  ST22: To check for dumps that may provide more context on the error.
  SICF: To check the HTTP services if the RFC is related to web services.
  
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication failures.
  
  
  Logs and Traces: Review logs and traces for more detailed error messages that can provide additional context for troubleshooting.
  
  
  By following these steps, you should be able to identify and resolve the communication failure indicated by the FDT_BRS101 error message.