How To Fix EPIC_BANK_COMM106 - RFC error occurred; system could not receive response message

SAP Error Message - Details

• Message type: E = Error

• Message class: EPIC_BANK_COMM - Message Class for BACO PROG

• Message number: 106

• Message text: RFC error occurred; system could not receive response message

What causes this issue?

You sent a query to a bank communication client and your SAP system
received a response. The response message states that there is a problem
with the connection between the bank communication client and your SAP
system.

System Response

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

Check the RFC connection from the <LS>Electronic Payment Integration
(China)</> screen by choosing <LS>Administration</> -> <LS>Check Client
Status</>.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message EPIC_BANK_COMM106 - RFC error occurred; system could not receive response message ?

  The SAP error message "EPIC_BANK_COMM106 RFC error occurred; system could not receive response message" typically indicates an issue with Remote Function Call (RFC) communication between SAP systems or between an SAP system and an external system. This error can arise due to various reasons, including network issues, configuration problems, or system performance issues.
  Causes:
  
  Network Issues: Problems with the network connection between the SAP systems can lead to communication failures.
  Timeouts: If the response from the remote system takes too long, it may exceed the timeout settings, resulting in an error.
  Configuration Errors: Incorrect RFC destination settings or missing authorizations can prevent successful communication.
  System Performance: High load on the system or resource constraints can lead to delays in processing requests.
  Service Availability: The target system may be down or not available for processing requests.
  Firewall or Security Settings: Firewalls or security settings may block the communication between systems.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the systems involved. You can use tools like ping or traceroute to diagnose network issues.
  Review RFC Destination Settings: Go to transaction SM59 in SAP and check the configuration of the RFC destination. Ensure that the settings are correct and that the destination is reachable.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the RFC destination configuration.
  Monitor System Performance: Check the performance of the SAP system using transaction SM50 or SM66 to see if there are any resource bottlenecks.
  Check System Logs: Review the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages or warnings that could provide more context.
  Test the RFC Connection: Use the "Test Connection" feature in transaction SM59 to verify that the RFC destination is working correctly.
  Check for Service Availability: Ensure that the target system or service is up and running and can process requests.
  Firewall and Security Settings: Verify that there are no firewall rules or security settings blocking the communication between the systems.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the SAP documentation related to RFC communication and troubleshooting.
  Support: If the issue persists, consider reaching out to SAP support for further assistance, providing them with detailed logs and error messages.
  
  By following these steps, you should be able to identify and resolve the cause of the RFC error in your SAP environment.