How To Fix GW075 - Error while establishing connection to start service

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 075

• Message text: Error while establishing connection to start service

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 GW075 - Error while establishing connection to start service ?

  The SAP error message GW075 indicates that there is an issue with establishing a connection to start a service, typically related to the SAP Gateway. This error can arise due to various reasons, and understanding the cause is essential for troubleshooting. Here are some common causes, potential solutions, and related information:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP Gateway and the backend system.
  Service Not Registered: The service you are trying to access may not be registered or activated in the SAP Gateway.
  Authorization Issues: The user may not have the necessary authorizations to access the service.
  Configuration Errors: Incorrect configuration settings in the SAP Gateway or backend system can lead to this error.
  System Load: High load on the system can cause timeouts or failures in establishing connections.
  Firewall or Security Settings: Firewalls or security settings may be blocking the connection to the service.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Ensure that the network connection between the SAP Gateway and the backend system is stable and functioning.
  Use tools like ping or traceroute to diagnose network issues.
  
  
  
  Verify Service Registration:
  
  Use transaction code /IWFND/MAINT_SERVICE in the SAP Gateway to check if the service is registered and active.
  If the service is not listed, you may need to register it.
  
  
  
  Check Authorizations:
  
  Ensure that the user has the necessary authorizations to access the service. You can check this using transaction code SU53 after the error occurs.
  
  
  
  Review Configuration Settings:
  
  Check the configuration settings in the SAP Gateway and backend system to ensure they are correct.
  Review the settings in transaction SPRO under the relevant sections for Gateway configuration.
  
  
  
  Monitor System Load:
  
  Check the system performance and load. If the system is under heavy load, consider optimizing performance or scheduling tasks during off-peak hours.
  
  
  
  Firewall and Security Settings:
  
  Review firewall settings to ensure that they are not blocking the required ports for SAP Gateway communication.
  Check any security policies that may affect the connection.
  
  
  
  Related Information:
  
  SAP Notes: Check for relevant SAP Notes that may provide additional insights or patches related to the GW075 error.
  Logs and Traces: Review the Gateway logs (transaction SLG1) and traces to gather more information about the error.
  SAP Community: Engage with the SAP Community forums for discussions and solutions shared by other users who may have encountered similar issues.
  
  By systematically checking these areas, you should be able to identify the root cause of the GW075 error and implement an appropriate solution.