How To Fix /UI2/CORE_FES005 - Backend Context Collector on local Gateway hub not called

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CORE_FES -

• Message number: 005

• Message text: Backend Context Collector on local Gateway hub not called

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 /UI2/CORE_FES005 - Backend Context Collector on local Gateway hub not called ?

  The SAP error message /UI2/CORE_FES005 Backend Context Collector on local Gateway hub not called typically indicates an issue with the communication between the SAP Fiori front-end server and the back-end system. This error can occur in scenarios where the Fiori application is trying to retrieve data from the back-end but is unable to do so due to configuration or connectivity issues.
  Causes:
  
  Configuration Issues: The Gateway service might not be properly configured to communicate with the back-end system.
  Service Activation: The required OData services may not be activated in the SAP Gateway.
  Network Issues: There could be network connectivity problems between the front-end and back-end systems.
  Authorization Issues: The user might not have the necessary authorizations to access the back-end data.
  System Errors: There could be issues with the back-end system itself, such as performance problems or errors in the back-end application.
  
  Solutions:
  
  
  Check Service Activation:
  
  Go to the SAP Gateway system and check if the required OData services are activated using transaction code /IWFND/MAINT_SERVICE.
  Ensure that the services related to the Fiori application are listed and activated.
  
  
  
  Review Configuration:
  
  Verify the configuration settings in the SAP Gateway and ensure that the back-end system is correctly defined.
  Check the RFC destination settings using transaction code SM59 to ensure that the connection to the back-end system is correctly configured.
  
  
  
  Check Network Connectivity:
  
  Test the network connection between the front-end and back-end systems. You can use tools like ping or telnet to check connectivity.
  Ensure that there are no firewall rules blocking the communication.
  
  
  
  Authorization Check:
  
  Ensure that the user has the necessary authorizations to access the OData services and the back-end data.
  Use transaction code SU53 to analyze authorization issues after the error occurs.
  
  
  
  Check Backend System:
  
  Review the back-end system for any performance issues or errors that might be affecting the data retrieval.
  Check the application logs in the back-end system using transaction code SLG1 for any relevant error messages.
  
  
  
  Debugging:
  
  If the issue persists, consider debugging the Fiori application to trace where the failure occurs.
  Use transaction code SE80 or SE37 to analyze the relevant function modules or classes.
  
  
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that might address this specific error or provide additional troubleshooting steps.
  Fiori Launchpad Configuration: Ensure that the Fiori Launchpad is correctly configured to call the back-end services.
  SAP Community: Engage with the SAP Community forums for insights from other users who may have encountered similar issues.
  
  By following these steps, you should be able to identify and resolve the issue causing the /UI2/CORE_FES005 error message.