How To Fix COD_ERP_COMMON002 - HTTP Connection to the Middleware System failed

SAP Error Message - Details

• Message type: E = Error

• Message class: COD_ERP_COMMON - COD_ERP_COMMON

• Message number: 002

• Message text: HTTP Connection to the Middleware System failed

What causes this issue?

Communication Error:- HTTP Connection to the middleware system could not
be established.

System Response

&V1&&V2&&V3&&V4&

How to fix this error?

Make sure correct Host name and Port information is available in
<DS:TRAN.SOAMANAGER>SOAMANAGER</> for the Consumer Proxy
<ZH>CO_CODERINT_CONNECTIVITY_CHECK</>
@0S@
Additionally if the SAP system is connecting to a HCI system, the
required proxy settings are maintained under the Transport settings for
the consumer proxy.

Procedure for System Administrators

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message COD_ERP_COMMON002 - HTTP Connection to the Middleware System failed ?

  The SAP error message COD_ERP_COMMON002, which indicates that the HTTP connection to the middleware system has failed, can arise from various causes. Below are some common causes, potential solutions, and related information to help troubleshoot and resolve the issue.
  Causes:
  
  Network Issues: There may be network connectivity problems between the SAP system and the middleware system.
  Incorrect Configuration: The HTTP connection settings in the SAP system may be incorrectly configured, such as the URL, port, or authentication details.
  Middleware System Down: The middleware system may be down or not reachable due to maintenance or other issues.
  Firewall Restrictions: Firewalls or security settings may be blocking the HTTP requests between the SAP system and the middleware.
  SSL/TLS Issues: If the connection uses HTTPS, there may be issues with SSL certificates or TLS settings.
  Proxy Settings: If a proxy server is used, it may not be configured correctly in the SAP system.
  
  Solutions:
  
  
  Check Network Connectivity:
  
  Use tools like ping or traceroute to verify connectivity to the middleware system.
  Ensure that the middleware system is up and running.
  
  
  
  Verify Configuration:
  
  Go to the transaction code SOAMANAGER in SAP and check the configuration of the service.
  Ensure that the URL, port, and other connection parameters are correct.
  
  
  
  Review Middleware Logs:
  
  Check the logs of the middleware system for any errors or issues that might indicate why the connection is failing.
  
  
  
  Firewall and Security Settings:
  
  Ensure that the necessary ports are open in the firewall for communication between the SAP system and the middleware.
  Check if any security policies are blocking the connection.
  
  
  
  SSL/TLS Configuration:
  
  If using HTTPS, verify that the SSL certificates are valid and correctly installed.
  Check the TLS settings in both the SAP system and the middleware.
  
  
  
  Proxy Configuration:
  
  If a proxy is used, ensure that the proxy settings in the SAP system are correctly configured.
  You can check the proxy settings in transaction SMICM under the "Services" tab.
  
  
  
  Test Connection:
  
  Use the HTTP Connection Test feature in SOAMANAGER to test the connection to the middleware system.
  
  
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to COD_ERP_COMMON002 for any specific patches or updates that may address the issue.
  Documentation: Review the official SAP documentation for configuring HTTP connections and middleware integration.
  Support: If the issue persists, consider reaching out to SAP support for further assistance.
  
  By following these steps, you should be able to identify and resolve the cause of the COD_ERP_COMMON002 error message.