How To Fix /UI2/CAT_HCP004 - Error during the HTTP send method

SAP Error Message - Details

• Message type: E = Error

• Message class: /UI2/CAT_HCP -

• Message number: 004

• Message text: Error during the HTTP send method

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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Smart SAP Assistant

• What is the cause and solution for SAP error message /UI2/CAT_HCP004 - Error during the HTTP send method ?

  The SAP error message /UI2/CAT_HCP004 Error during the HTTP send method typically indicates that there was an issue when trying to send an HTTP request from the SAP system. This error can occur in various contexts, such as when using SAP Fiori applications or when integrating with external services.
  Causes:
  
  Network Issues: There may be connectivity problems between the SAP system and the target service or endpoint.
  Incorrect URL: The URL being called may be incorrect or malformed.
  Authentication Issues: The request may require authentication, and the credentials provided may be invalid or missing.
  Timeouts: The request may be timing out due to slow network response or server unavailability.
  Proxy Configuration: If a proxy is required to reach the external service, it may not be configured correctly in the SAP system.
  Service Unavailability: The external service being called may be down or experiencing issues.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the target service. You can use tools like ping or telnet to test connectivity.
  Verify the URL: Double-check the URL being used in the HTTP request to ensure it is correct and accessible.
  Review Authentication: If the service requires authentication, ensure that the correct credentials are being used and that they are properly configured in the SAP system.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings for the HTTP request in the SAP configuration.
  Proxy Settings: If a proxy is needed, ensure that the proxy settings are correctly configured in the SAP system (transaction SM59 for RFC destinations).
  Check Service Status: Verify that the external service is up and running. You can do this by trying to access the service from a web browser or using tools like Postman.
  Review Logs: Check the SAP application logs (transaction SLG1) for more detailed error messages that can provide additional context about the failure.
  
  Related Information:
  
  SAP Notes: Check for any relevant SAP Notes that may address this specific error or provide patches and updates.
  Documentation: Review the official SAP documentation for the specific component or service you are working with to ensure that all configurations are correct.
  Community Forums: Consider searching or posting in SAP community forums for additional insights from other users who may have encountered similar issues.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.