How To Fix /UI2/INTEROP023 - Failed to receive response from HTTP server

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/INTEROP -

• Message number: 023

• Message text: Failed to receive response from HTTP server

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.

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/INTEROP023 - Failed to receive response from HTTP server ?

  The SAP error message /UI2/INTEROP023 Failed to receive response from HTTP server typically indicates that there is a communication issue between the SAP system and an HTTP server. This can occur in various scenarios, such as when trying to access Fiori applications or other web-based services.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the HTTP server.
  Server Unavailability: The HTTP server may be down or not reachable due to maintenance or other issues.
  Timeouts: The request may be timing out due to long processing times on the server.
  Configuration Issues: Incorrect configuration settings in the SAP system or the HTTP server can lead to communication failures.
  Firewall Restrictions: Firewalls or security settings may be blocking the communication between the SAP system and the HTTP server.
  Load Balancer Issues: If a load balancer is used, it may not be routing requests correctly.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the HTTP server. You can use tools like ping or traceroute to diagnose network issues.
  Verify Server Status: Check if the HTTP server is up and running. You can try accessing it directly through a web browser or using tools like curl.
  Increase Timeout Settings: If the server is taking too long to respond, consider increasing the timeout settings in the SAP system or the HTTP server.
  Review Configuration: Check the configuration settings in the SAP system (e.g., HTTP connection settings) and ensure they are correct.
  Check Firewall Settings: Ensure that there are no firewall rules blocking the communication between the SAP system and the HTTP server.
  Monitor Load Balancer: If applicable, check the load balancer settings to ensure it is routing requests correctly.
  Review Logs: Check the SAP application logs and the HTTP server logs for any additional error messages that could provide more context on the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  Documentation: Review the official SAP documentation for the specific version of the system you are using, as there may be version-specific considerations.
  
  If the issue persists after trying the above solutions, it may be beneficial to involve your network or system administrators for further investigation.