How To Fix GW234 - Failed to establish connection to CPIC program

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 234

• Message text: Failed to establish connection to CPIC program

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 GW234 - Failed to establish connection to CPIC program ?

  The SAP error message GW234, which indicates a failure to establish a connection to a CPIC (Common Programming Interface Communication) program, can arise from various causes. Below are some common causes, potential solutions, and related information to help troubleshoot this issue.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target system (e.g., a database or another SAP instance).
  Configuration Errors: Incorrect configuration settings in the SAP system or the target system can prevent a successful connection.
  CPIC Program Not Running: The CPIC program (such as an SAP application server) may not be running or may have crashed.
  Firewall Restrictions: Firewalls or security settings may be blocking the necessary ports for communication.
  Resource Limitations: The server may be experiencing resource limitations (e.g., memory, CPU) that prevent it from establishing new connections.
  Incorrect RFC Destination: The RFC (Remote Function Call) destination may be incorrectly configured or pointing to the wrong system.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the SAP system can reach the target system.
  Ensure that there are no network outages or issues.
  
  
  
  Review Configuration Settings:
  
  Check the configuration of the RFC destination in transaction SM59. Ensure that the connection type and parameters are correctly set.
  Verify that the target system is correctly defined and reachable.
  
  
  
  Verify CPIC Program Status:
  
  Ensure that the CPIC program or the SAP application server is running. You can check the status of the application server using transaction SM51.
  
  
  
  Check Firewall Settings:
  
  Ensure that the necessary ports for SAP communication (e.g., port 3200 for SAP GUI) are open and not blocked by firewalls.
  
  
  
  Monitor System Resources:
  
  Check the system logs and performance metrics to identify any resource limitations. Use transaction SM66 to monitor active processes and resource usage.
  
  
  
  Test RFC Connection:
  
  Use transaction SM59 to test the RFC connection. This can help identify if the issue is with the connection itself.
  
  
  
  Review SAP Notes:
  
  Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide additional troubleshooting steps.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SM59: Manage RFC destinations.
  SM51: Display and manage application servers.
  SM66: Monitor global work processes.
  SM21: Check system logs for errors.
  
  
  
  SAP Documentation: Refer to the official SAP documentation for detailed information on CPIC and RFC connections.
  
  
  SAP 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 diagnose and resolve the GW234 error effectively.