How To Fix BCOMAL109 - RFC communication error: &

SAP Error Message - Details

• Message type: E = Error

• Message class: BCOMAL - Business Communication: Alert Monitor Messages

• Message number: 109

• Message text: RFC communication error: &

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 BCOMAL109 - RFC communication error: & ?

  The SAP error message BCOMAL109 indicates an RFC (Remote Function Call) communication error. This error can occur for various reasons when trying to establish a connection between SAP systems or between an SAP system and an external system. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: Problems with the network connection between the SAP systems or between SAP and external systems can lead to RFC communication errors.
  Configuration Errors: Incorrect configuration of RFC destinations in the SAP system can cause communication failures.
  Authorization Issues: The user credentials used for the RFC connection may not have the necessary authorizations.
  System Availability: The target system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls may be blocking the required ports for RFC communication.
  SAP Gateway Issues: Problems with the SAP Gateway service can also lead to communication errors.
  
  Solutions:
  
  Check Network Connectivity: Ensure that there is proper network connectivity between the 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 the connection parameters (like target host, system number, client, user, and password) are correct.
  Test Connection: In transaction SM59, use the "Test Connection" button to verify if the RFC destination is working correctly.
  Check Authorizations: Ensure that the user used for the RFC connection has the necessary authorizations to perform the required actions.
  Check System Status: Verify that the target system is up and running. You can check the system status in transaction SM51 or by contacting the system administrator.
  Review Firewall Settings: Ensure that the firewall settings allow traffic on the required ports for RFC communication (typically port 3200 for SAP).
  Check SAP Gateway: Ensure that the SAP Gateway service is running properly. You can check this in transaction SMGW.
  Review Logs: Check the system logs (transaction SM21) and the developer trace files (transaction ST22) for any additional error messages that might provide more context.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to RFC communication errors.
  Documentation: Review the SAP documentation for RFC communication and troubleshooting steps.
  Community Forums: Check SAP Community forums for similar issues and solutions shared by other users.
  
  If the issue persists after trying the above solutions, it may be necessary to involve your SAP Basis team or SAP support for further investigation.