How To Fix ESH_FL_MSG156 - Creation of HTTP connection request failed

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_FL_MSG - File Processing

• Message number: 156

• Message text: Creation of HTTP connection request failed

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 ESH_FL_MSG156 - Creation of HTTP connection request failed ?

  The SAP error message ESH_FL_MSG156, which indicates that the creation of an HTTP connection request has failed, can arise from various issues related to the configuration of the HTTP connection in the SAP system. Below are some common causes, potential solutions, and related information to help troubleshoot this error.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the target server.
  Incorrect Configuration: The HTTP connection might not be configured correctly in the SAP system.
  Proxy Settings: If a proxy server is required for the connection, incorrect proxy settings can lead to this error.
  Firewall Restrictions: Firewalls may be blocking the HTTP requests from the SAP system.
  SSL/TLS Issues: If the connection requires SSL/TLS, there may be issues with certificates or the SSL configuration.
  Service Unavailability: The target service may be down or not reachable.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify that the SAP system can reach the target server.
  Ensure that there are no network outages or issues.
  
  
  
  Review HTTP Connection Configuration:
  
  Go to transaction SM59 in the SAP GUI.
  Check the configuration of the HTTP connection (RFC destination) for correctness, including the target host, port, and path.
  
  
  
  Verify Proxy Settings:
  
  If a proxy is required, ensure that the proxy settings are correctly configured in the SAP system.
  Check the transaction SM59 for any proxy settings that may need to be adjusted.
  
  
  
  Check Firewall Settings:
  
  Ensure that the necessary ports are open on the firewall to allow HTTP traffic between the SAP system and the target server.
  
  
  
  SSL/TLS Configuration:
  
  If using HTTPS, verify that the SSL certificates are correctly installed and trusted by the SAP system.
  Check the SSL configuration in transaction STRUST to ensure that the necessary certificates are in place.
  
  
  
  Test the Connection:
  
  Use the "Test Connection" feature in transaction SM59 to see if the connection can be established successfully.
  Review any error messages that appear during the test for additional clues.
  
  
  
  Check Logs:
  
  Review the application logs (transaction SLG1) and system logs (transaction SM21) for any related error messages that could provide more context.
  
  
  
  Consult Documentation:
  
  Refer to SAP Notes and documentation related to the specific version of SAP you are using for any known issues or additional troubleshooting steps.
  
  
  
  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.
  System Administrator: If you are not the system administrator, it may be necessary to involve them, especially for network or server-related issues.
  
  By following these steps, you should be able to identify and resolve the cause of the ESH_FL_MSG156 error in your SAP system.