How To Fix /IWNGW/CM_HUB139 - Push Channel '&1' not registered.

SAP Error Message - Details

• Message type: E = Error

• Message class: /IWNGW/CM_HUB -

• Message number: 139

• Message text: Push Channel '&1' not registered.

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message /IWNGW/CM_HUB139 - Push Channel '&1' not registered. ?

  The SAP error message /IWNGW/CM_HUB139 Push Channel '&1' not registered typically occurs in the context of SAP Gateway and mobile applications that utilize push notifications. This error indicates that the specified push channel (represented by &1) is not registered in the system, which means that the application is trying to send a push notification through a channel that has not been properly set up or is not recognized by the SAP Gateway.
  Causes:
  
  Unregistered Push Channel: The push channel you are trying to use has not been registered in the SAP Gateway system.
  Configuration Issues: There may be issues with the configuration of the push notification service or the application itself.
  Incorrect Channel Name: The name of the push channel being referenced may be incorrect or misspelled.
  System or Network Issues: There could be underlying system or network issues preventing the registration or recognition of the push channel.
  
  Solutions:
  
  
  Register the Push Channel:
  
  Ensure that the push channel is properly registered in the SAP Gateway. This can typically be done through the SAP Fiori Launchpad or the relevant configuration transaction.
  Check the configuration settings for the push notifications in the SAP Gateway and ensure that the channel is listed and active.
  
  
  
  Verify Channel Name:
  
  Double-check the name of the push channel being used in your application. Ensure that it matches exactly with what is registered in the system.
  
  
  
  Check Configuration:
  
  Review the configuration settings for the push notification service. Ensure that all necessary parameters are set correctly.
  If you are using a third-party push notification service, ensure that the integration with SAP Gateway is correctly configured.
  
  
  
  Consult Logs:
  
  Check the SAP Gateway logs for any additional error messages or warnings that may provide more context about the issue.
  Use transaction codes like /IWFND/ERROR_LOG to view error logs related to the Gateway.
  
  
  
  Restart Services:
  
  Sometimes, restarting the relevant services or the entire SAP Gateway can resolve transient issues.
  
  
  
  Consult Documentation:
  
  Refer to the official SAP documentation for push notifications and SAP Gateway for any specific configuration steps or troubleshooting tips.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide updates related to push notifications.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Version Compatibility: Ensure that your SAP system version is compatible with the push notification features you are trying to use.
  
  If the issue persists after trying the above solutions, it may be beneficial to reach out to SAP support for further assistance.