How To Fix GW236 - SAP gateway connection failed; is SAP gateway started?

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 236

• Message text: SAP gateway connection failed; is SAP gateway started?

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 GW236 - SAP gateway connection failed; is SAP gateway started? ?

  The SAP error message GW236 indicates that there is a failure in establishing a connection to the SAP Gateway. This can occur for various reasons, and understanding the cause is essential for troubleshooting. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  SAP Gateway Not Running: The SAP Gateway service may not be started on the application server.
  Network Issues: There may be network connectivity issues between the client and the SAP server.
  Incorrect Configuration: The configuration settings for the SAP Gateway may be incorrect, such as the gateway host or port.
  Firewall Restrictions: Firewalls may be blocking the connection to the SAP Gateway.
  Resource Limitations: The server may be experiencing resource limitations (e.g., memory, CPU) that prevent the Gateway from functioning properly.
  SAP System Down: The entire SAP system may be down or undergoing maintenance.
  
  Solutions:
  
  
  Check SAP Gateway Status:
  
  Use transaction code SMGW in the SAP GUI to check if the Gateway is running. If it is not, you may need to start it.
  You can also check the Gateway logs for any errors.
  
  
  
  Start the SAP Gateway:
  
  If the Gateway is not running, you can start it using the appropriate command or through the SAP Management Console (SAP MMC).
  
  
  
  Verify Network Connectivity:
  
  Ensure that the client can reach the SAP server. You can use tools like ping or telnet to check connectivity to the Gateway host and port.
  
  
  
  Check Configuration Settings:
  
  Verify the configuration settings in the SAP system, including the gateway host and port settings. This can be done in transaction RZ10 or RZ11.
  
  
  
  Review Firewall Settings:
  
  Check if there are any firewall rules that might be blocking the connection to the SAP Gateway. Ensure that the necessary ports are open.
  
  
  
  Monitor System Resources:
  
  Check the server's resource usage to ensure that it is not overloaded. You may need to optimize performance or allocate more resources.
  
  
  
  Check SAP Notes:
  
  Look for any relevant SAP Notes that might address known issues related to the GW236 error. SAP Notes can provide specific fixes or patches.
  
  
  
  Restart the SAP System:
  
  If all else fails, consider restarting the SAP system, as this can sometimes resolve transient issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SMGW: Monitor SAP Gateway
  RZ10: Profile Maintenance
  RZ11: Profile Parameter Maintenance
  SM51: List of SAP Servers
  
  
  
  Logs:
  
  Check the Gateway logs for detailed error messages. These logs can provide insights into what might be causing the connection failure.
  
  
  
  SAP Support:
  
  If the issue persists after trying the above solutions, consider reaching out to SAP Support for further assistance.
  
  
  
  By following these steps, you should be able to diagnose and resolve the GW236 error effectively.