How To Fix MSG_CL_ER264 - Error while receiving response from HTTP client with URL &1

SAP Error Message - Details

• Message type: E = Error

• Message class: MSG_CL_ER - Message Class for Enterprise Registry

• Message number: 264

• Message text: Error while receiving response from HTTP client with URL &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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message MSG_CL_ER264 - Error while receiving response from HTTP client with URL &1 ?

  The SAP error message MSG_CL_ER264 indicates that there was an issue while receiving a response from an HTTP client for a specified URL. This error typically arises in scenarios where SAP is trying to communicate with an external system or service via HTTP, and it encounters a problem in the response process.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the HTTP client.
  Timeouts: The request may have timed out due to slow response from the HTTP client.
  Invalid URL: The URL specified may be incorrect or not reachable.
  HTTP Client Issues: The external HTTP client may be down or experiencing issues.
  Firewall/Proxy Issues: Firewalls or proxies may be blocking the request or response.
  SSL/TLS Issues: If the communication is over HTTPS, there may be issues with SSL/TLS certificates.
  Configuration Issues: Incorrect configuration in the SAP system for HTTP communication.
  
  Solutions:
  
  Check Network Connectivity: Ensure that the SAP system can reach the HTTP client. You can use tools like ping or telnet to test connectivity.
  Verify URL: Double-check the URL being used in the request to ensure it is correct and accessible.
  Increase Timeout Settings: If timeouts are an issue, consider increasing the timeout settings in the SAP system for HTTP requests.
  Check HTTP Client Status: Verify that the external HTTP client is up and running and can handle requests.
  Review Firewall/Proxy Settings: Ensure that there are no firewall or proxy settings blocking the communication.
  SSL/TLS Configuration: If using HTTPS, check the SSL/TLS configuration and ensure that the certificates are valid and trusted by the SAP system.
  SAP Configuration: Review the configuration settings in SAP for HTTP communication, including any relevant RFC destinations or HTTP connections.
  
  Related Information:
  
  Transaction Codes: You may want to check transaction codes like SMICM (ICM Monitor) to monitor HTTP connections and see logs related to HTTP requests.
  Logs: Check the application logs (transaction SLG1) for more detailed error messages that can provide additional context.
  SAP Notes: Look for relevant SAP Notes that may address specific issues related to HTTP communication or the error message in question.
  Documentation: Review SAP documentation on HTTP communication and error handling for more insights.
  
  If the issue persists after trying the above solutions, it may be beneficial to engage with SAP support for further assistance.