How To Fix GW074 - No gateway is running in the ASCS instance

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 074

• Message text: No gateway is running in the ASCS instance

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message GW074 - No gateway is running in the ASCS instance ?

  The SAP error message GW074 indicates that there is no gateway running in the ASCS (ABAP SAP Central Services) instance. This can prevent communication between different components of the SAP system, particularly in a distributed environment.
  Cause:
  The error can occur due to several reasons, including:
  
  Gateway Service Not Started: The SAP Gateway service may not be running on the ASCS instance.
  Configuration Issues: There may be misconfigurations in the instance profile or the SAP system configuration.
  Network Issues: Network problems could prevent the gateway from being accessible.
  Resource Constraints: The server may be under heavy load, causing the gateway to fail to start.
  System Errors: There may be underlying system errors or issues with the SAP kernel.
  
  Solution:
  To resolve the GW074 error, you can follow these steps:
  
  
  Check Gateway Status:
  
  Use transaction SMGW to check the status of the gateway. If it is not running, you may need to start it.
  
  
  
  Start the Gateway:
  
  If the gateway is not running, you can start it using the following command in the command line:
  startsap
  
  Alternatively, you can start the gateway directly from the SAP Management Console (SAP MMC) if you are using it.
  
  
  
  Check Instance Profile:
  
  Ensure that the instance profile for the ASCS instance is correctly configured. Look for parameters related to the gateway, such as gw/enable and gw/host.
  
  
  
  Review Logs:
  
  Check the developer trace files (dev_w*) and the gateway logs for any error messages that could provide more context on why the gateway is not starting.
  
  
  
  Check Network Configuration:
  
  Ensure that the network configuration allows communication to and from the gateway. Check firewall settings and network connectivity.
  
  
  
  Restart ASCS Instance:
  
  If the above steps do not resolve the issue, consider restarting the ASCS instance. This can sometimes clear transient issues.
  
  
  
  Check System Resources:
  
  Monitor system resources (CPU, memory, etc.) to ensure that the server is not overloaded. If it is, consider optimizing resource usage or scaling up the server.
  
  
  
  Consult SAP Notes:
  
  Look for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the GW074 error.
  
  
  
  Related Information:
  
  Transaction Codes: 
  
  SMGW: Gateway Monitor
  SMLG: Logon Groups
  SM51: List of SAP Servers
  
  
  SAP Documentation: Refer to the official SAP documentation for more details on gateway configuration and troubleshooting.
  SAP Community: Engage with the SAP Community for insights and solutions from other users who may have faced similar issues.
  
  If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.