How To Fix GW747 - Number of registrations has been exceeded

SAP Error Message - Details

• Message type: E = Error

• Message class: GW - Message Texts for Gateway

• Message number: 747

• Message text: Number of registrations has been exceeded

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 GW747 - Number of registrations has been exceeded ?

  The SAP error message GW747, which states "Number of registrations has been exceeded," typically occurs in the context of SAP Gateway services. This error indicates that the maximum number of allowed registrations for a particular service or application has been reached. Here are the causes, solutions, and related information for this error:
  Causes:
  
  Exceeded Registration Limit: Each SAP Gateway service has a limit on the number of active registrations. If this limit is reached, new requests will be denied, resulting in the GW747 error.
  Configuration Issues: Incorrect configuration settings in the SAP Gateway or the backend system can lead to this error.
  Resource Constraints: The system may be under heavy load, causing it to reach its registration limit more quickly.
  Session Management: If sessions are not being properly closed or managed, it can lead to an accumulation of active registrations.
  
  Solutions:
  
  
  Increase Registration Limit:
  
  You can increase the maximum number of registrations allowed for the service. This can typically be done in the SAP Gateway settings. Consult your system administrator or SAP documentation for specific steps.
  
  
  
  Monitor and Manage Sessions:
  
  Regularly monitor active sessions and registrations. Ensure that sessions are being properly terminated when no longer needed.
  Use transaction codes like /IWFND/MAINT_SERVICE to manage and monitor services.
  
  
  
  Check System Load:
  
  Analyze the system load and performance. If the system is under heavy load, consider optimizing performance or scaling resources.
  
  
  
  Review Configuration:
  
  Check the configuration settings for the SAP Gateway and ensure they are set correctly. This includes reviewing the settings in the SAP Gateway Hub and the backend system.
  
  
  
  Restart Services:
  
  In some cases, restarting the SAP Gateway service can help clear out stale registrations and resolve the issue temporarily.
  
  
  
  Consult SAP Notes:
  
  Check for any relevant SAP Notes or updates that may address this issue. SAP frequently releases patches and updates that can resolve known issues.
  
  
  
  Related Information:
  
  Transaction Codes: Familiarize yourself with relevant transaction codes such as /IWFND/MAINT_SERVICE for managing OData services and /IWFND/GW_CLIENT for testing OData services.
  SAP Gateway Documentation: Review the official SAP Gateway documentation for best practices on managing registrations and sessions.
  Performance Monitoring Tools: Utilize SAP performance monitoring tools to keep track of system performance and identify potential bottlenecks.
  
  If the issue persists after trying the above solutions, it may be beneficial to consult with SAP support or your internal IT team for further assistance.