How To Fix /UI2/CORE_FES008 - Failed to send HTTP client data (SM59 destination &1)

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CORE_FES -

• Message number: 008

• Message text: Failed to send HTTP client data (SM59 destination &1)

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.

What else can you do?

First, use our AnswerBot below to get a possible cause and solution (requires a premium subscription).

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.

You can also try searching the SAP support portal (support.sap.com) but you need a special user ID to access it. It is possible that an SAP support note exists that provides additional details about the mistake or even steps for fixing it.

Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CORE_FES008 - Failed to send HTTP client data (SM59 destination &1) ?

  The SAP error message /UI2/CORE_FES008 Failed to send HTTP client data (SM59 destination &1) typically indicates an issue with the HTTP connection to a specified destination in the SAP system. This error can occur in various scenarios, particularly when using SAP Fiori applications or when trying to connect to external services.
  Causes:
  
  Incorrect SM59 Configuration: The destination specified in the error message may not be configured correctly in transaction SM59. This could include incorrect URL, authentication issues, or missing parameters.
  Network Issues: There may be network connectivity problems between the SAP system and the target destination. This could be due to firewall settings, DNS issues, or other network-related problems.
  Authorization Issues: The user or service account used to connect to the destination may not have the necessary authorizations to perform the required actions.
  Service Unavailability: The external service or system that the SAP system is trying to connect to may be down or unavailable.
  SSL Configuration Issues: If the destination uses HTTPS, there may be issues with SSL certificates or trust relationships.
  
  Solutions:
  
  
  Check SM59 Configuration:
  
  Go to transaction SM59 and locate the destination mentioned in the error message.
  Verify that the connection parameters (such as the target host, port, and path) are correct.
  Test the connection using the "Connection Test" button to see if it succeeds.
  
  
  
  Network Troubleshooting:
  
  Ensure that the SAP system can reach the destination server. You can use tools like ping or telnet to check connectivity.
  Check firewall settings to ensure that the necessary ports are open.
  
  
  
  Review Authorizations:
  
  Ensure that the user or service account has the necessary authorizations to access the destination.
  Check if the user is locked or has expired credentials.
  
  
  
  Check External Service Availability:
  
  Verify that the external service is up and running. You can do this by trying to access the service directly from a web browser or using tools like Postman.
  
  
  
  SSL Configuration:
  
  If using HTTPS, ensure that the SSL certificates are correctly installed and trusted by the SAP system.
  You may need to import the server's SSL certificate into the SAP system's trust store.
  
  
  
  Review Logs:
  
  Check the SAP application logs (transaction SLG1) for more detailed error messages that may provide additional context about the failure.
  
  
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to the error message.
  Documentation: Review the official SAP documentation for configuring HTTP connections and troubleshooting connectivity issues.
  Community Forums: Consider checking SAP Community forums for similar issues and solutions shared by other users.
  
  By following these steps, you should be able to identify and resolve the issue causing the /UI2/CORE_FES008 error message.