How To Fix BIZC_UI001 - Communication error (RFC) occurred

SAP Error Message - Details

• Message type: E = Error

• Message class: BIZC_UI - Messages for User Interface of Business Content

• Message number: 001

• Message text: Communication error (RFC) occurred

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message BIZC_UI001 - Communication error (RFC) occurred ?

  The SAP error message BIZC_UI001: Communication error (RFC) occurred typically indicates that there is a problem with the Remote Function Call (RFC) communication between the SAP system and another system or component. This error can arise from various issues, including network problems, configuration errors, or issues with the RFC destination.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system.
  RFC Destination Configuration: The RFC destination may not be configured correctly in the SAP system (e.g., incorrect IP address, port, or connection type).
  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.
  Firewall Restrictions: Firewalls may be blocking the communication between the systems.
  SAP Gateway Issues: Problems with the SAP Gateway service can also lead to communication errors.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the target system is reachable from the SAP server.
  Ensure that there are no network outages or issues.
  
  
  
  Verify RFC Destination:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the RFC destination that is causing the error. Ensure that the connection parameters (like host, service, and connection type) are correct.
  Test the connection using the "Test Connection" button in SM59.
  
  
  
  Check User Authorizations:
  
  Ensure that the user credentials used for the RFC connection have the necessary authorizations to access the target system.
  
  
  
  Check System Availability:
  
  Verify that the target system is up and running. You can check the system logs or contact the system administrator.
  
  
  
  Review Firewall Settings:
  
  Ensure that firewalls are configured to allow traffic on the required ports for RFC communication.
  
  
  
  Check SAP Gateway:
  
  Ensure that the SAP Gateway service is running properly. You can check the status of the gateway using transaction SMGW.
  
  
  
  Review Logs:
  
  Check the SAP system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that may provide more context.
  
  
  
  Related Information:
  
  RFC (Remote Function Call): A protocol used in SAP systems to enable communication between different SAP systems or between SAP and non-SAP systems.
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SMGW: Monitor the SAP Gateway.
  SM21: View system logs.
  SLG1: View application logs.
  
  
  
  If the issue persists after checking the above points, it may be necessary to involve your SAP Basis team or consult SAP support for further assistance.