How To Fix SCLNT_HTTP405 - Internal ICM error (ICM_HTTP_INTERNAL_ERROR)

SAP Error Message - Details

• Message type: E = Error

• Message class: SCLNT_HTTP - Messages for HTTP Client for Respective Error Code

• Message number: 405

• Message text: Internal ICM error (ICM_HTTP_INTERNAL_ERROR)

What causes this issue?

An internal ICM error occurred.

System Response

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

How to fix this error?

Check the ICM trace file.

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SCLNT_HTTP405 - Internal ICM error (ICM_HTTP_INTERNAL_ERROR) ?

  The SAP error message "SCLNT_HTTP405 Internal ICM error (ICM_HTTP_INTERNAL_ERROR)" typically indicates an issue with the Internet Communication Manager (ICM) in the SAP system. This error can occur due to various reasons, including misconfigurations, issues with the HTTP request, or problems with the underlying application logic.
  Causes:
  
  Incorrect HTTP Method: The error may occur if the HTTP method used in the request (GET, POST, PUT, DELETE, etc.) is not supported by the server for the requested resource.
  Configuration Issues: Misconfigurations in the ICM settings or the web dispatcher can lead to this error.
  Application Errors: There may be issues in the application logic that are causing the ICM to fail when processing the request.
  Network Issues: Problems with network connectivity or firewalls may also lead to this error.
  Resource Not Found: The requested resource may not exist or may not be accessible due to permissions or other restrictions.
  
  Solutions:
  
  Check HTTP Method: Ensure that the correct HTTP method is being used for the request. If you are using a RESTful service, verify that the method matches the expected operation.
  Review ICM Configuration: Check the ICM settings in the SAP system. You can do this by navigating to transaction RZ10 or RZ11 to review profile parameters related to ICM.
  Check Application Logs: Look into the application logs (transaction SLG1) for any related error messages that might provide more context on the issue.
  Network Configuration: Verify that there are no network issues or firewall rules blocking the request. Ensure that the server is reachable and that there are no connectivity issues.
  Test with Different Clients: If possible, test the request using different clients (e.g., Postman, browser) to see if the issue persists across different environments.
  Update SAP Kernel: Ensure that your SAP system is running on a supported and updated kernel version, as bugs in older versions may lead to such errors.
  Consult SAP Notes: Check the SAP Support Portal for any relevant SAP Notes that may address this specific error or provide patches.
  
  Related Information:
  
  ICM Documentation: Review the official SAP documentation on ICM for detailed configuration and 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.
  SAP Support: If the issue persists and you have a support contract, consider reaching out to SAP Support for assistance.
  
  By following these steps, you should be able to diagnose and resolve the "SCLNT_HTTP405 Internal ICM error (ICM_HTTP_INTERNAL_ERROR)" in your SAP system.