How To Fix GW019 - No active connections exist

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 019

• Message text: No active connections exist

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 GW019 - No active connections exist ?

  The SAP error message GW019 ("No active connections exist") typically occurs in the context of SAP Gateway services when there is an issue with the connection between the SAP system and the backend or when the Gateway is unable to establish a connection to the required service. Here are some common causes, solutions, and related information for this error:
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP Gateway and the backend system.
  Service Not Active: The required service may not be activated in the SAP Gateway or the backend system.
  Configuration Issues: Incorrect configuration settings in the SAP Gateway or backend system can lead to this error.
  Authorization Issues: The user may not have the necessary authorizations to access the service.
  System Load: High system load or resource constraints may prevent the establishment of new connections.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Ensure that the network connection between the SAP Gateway and the backend system is stable and operational. You can use tools like ping or traceroute to diagnose network issues.
  
  
  
  Activate Services:
  
  Go to the SAP Gateway transaction /IWFND/MAINT_SERVICE and check if the required OData service is activated. If not, activate it.
  
  
  
  Review Configuration:
  
  Check the configuration settings in the SAP Gateway and backend system. Ensure that the RFC destination is correctly configured in transaction SM59.
  
  
  
  Check Authorizations:
  
  Verify that the user has the necessary authorizations to access the service. You can check this in transaction SU53 after attempting to access the service.
  
  
  
  Monitor System Performance:
  
  Use transaction SM50 or SM66 to monitor the system load and check if there are any performance issues that might be affecting connection establishment.
  
  
  
  Restart Services:
  
  If the issue persists, consider restarting the SAP Gateway service or the backend system to clear any temporary issues.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  /IWFND/MAINT_SERVICE: To manage OData services.
  SM59: To check and configure RFC destinations.
  SU53: To analyze authorization issues.
  SM50 / SM66: To monitor system performance.
  
  
  
  SAP Notes: Check for relevant SAP Notes that may address specific issues related to the GW019 error. You can search for notes in the SAP Support Portal.
  
  
  Logs: Review the system logs (transaction SLG1) for any additional error messages or warnings that may provide more context about the issue.
  
  
  By following these steps, you should be able to diagnose and resolve the GW019 error in your SAP environment. If the problem persists, consider reaching out to SAP support for further assistance.