How To Fix SCLNT_HTTP406 - ICM authorization error (ICM_HTTP_NO_PERMISSION)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 406

• Message text: ICM authorization error (ICM_HTTP_NO_PERMISSION)

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_HTTP406 - ICM authorization error (ICM_HTTP_NO_PERMISSION) ?

  The SAP error message SCLNT_HTTP406 with the description ICM authorization error (ICM_HTTP_NO_PERMISSION) typically indicates that there is an issue with the authorization settings for the Internet Communication Manager (ICM) in your SAP system. This error occurs when a request is made to the ICM, but the user does not have the necessary permissions to access the requested resource.
  Causes:
  
  Authorization Issues: The user making the request does not have the required authorizations to access the specific resource or service.
  ICM Configuration: The ICM may not be configured correctly to allow access to certain URLs or services.
  HTTP Security Settings: Security settings in the ICM may be too restrictive, preventing access to certain endpoints.
  User Roles: The user may not be assigned the correct roles or profiles that grant access to the required transactions or services.
  
  Solutions:
  
  
  Check User Authorizations:
  
  Verify that the user has the necessary authorizations to access the requested resource. You can do this by checking the user's roles and profiles in transaction SU01 (User Maintenance).
  Ensure that the user has the appropriate authorization objects assigned.
  
  
  
  Review ICM Configuration:
  
  Check the ICM configuration settings in transaction RZ10 or RZ11. Look for parameters related to HTTP access and authorization.
  Ensure that the ICM is configured to allow access to the required services.
  
  
  
  Adjust HTTP Security Settings:
  
  Review the HTTP security settings in the ICM configuration. You may need to adjust the settings to allow access to specific URLs or services.
  You can check the settings in transaction RZ10 or through the ICM configuration files.
  
  
  
  Check for URL Restrictions:
  
  If there are specific URL restrictions in place, ensure that the URL being accessed is allowed. You can check this in the ICM settings.
  
  
  
  Consult SAP Notes:
  
  Search for relevant SAP Notes that may address this specific error. SAP frequently updates its knowledge base with solutions for common issues.
  
  
  
  Testing:
  
  After making changes, test the access again to see if the issue is resolved. You can use tools like a web browser or Postman to simulate the HTTP request.
  
  
  
  Related Information:
  
  Transaction Codes:
  
  SU01: User Maintenance
  RZ10: Profile Maintenance
  RZ11: Profile Parameter Maintenance
  
  
  SAP Notes: Always check the SAP Support Portal for any specific notes related to the error message or the components involved.
  Documentation: Review the official SAP documentation for ICM and authorization management for more detailed guidance.
  
  If the issue persists after following these steps, it may be beneficial to consult with your SAP Basis team or reach out to SAP support for further assistance.