How To Fix SCLNT_HTTP403 - Service not available (ICM_HTTP_SERVICE_UNAVAILABLE)

SAP Error Message - Details

• Message type: E = Error

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

• Message number: 403

• Message text: Service not available (ICM_HTTP_SERVICE_UNAVAILABLE)

What causes this issue?

A service that is required for processing your query is
not available.

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_HTTP403 - Service not available (ICM_HTTP_SERVICE_UNAVAILABLE) ?

  The SAP error message SCLNT_HTTP403: Service not available (ICM_HTTP_SERVICE_UNAVAILABLE) typically indicates that the HTTP service you are trying to access is currently unavailable. This can occur for a variety of reasons, and understanding the cause is essential for troubleshooting and resolving the issue.
  Causes:
  
  Service Not Activated: The HTTP service you are trying to access may not be activated in the SAP system.
  Authorization Issues: The user may not have the necessary authorizations to access the service.
  Network Issues: There may be network connectivity problems preventing access to the service.
  ICM Configuration: The Internet Communication Manager (ICM) may not be configured correctly or may be down.
  Resource Limitations: The server may be experiencing high load or resource limitations, causing it to reject new connections.
  Service Maintenance: The service may be temporarily down for maintenance or updates.
  
  Solutions:
  
  
  Check Service Activation:
  
  Use transaction SICF to check if the service is activated. Navigate to the relevant service and ensure it is active.
  If it is not active, activate it.
  
  
  
  Review Authorizations:
  
  Ensure that the user has the necessary authorizations to access the service. Check roles and profiles assigned to the user.
  
  
  
  Check Network Connectivity:
  
  Verify that there are no network issues preventing access to the SAP system. You can use tools like ping or traceroute to check connectivity.
  
  
  
  ICM Configuration:
  
  Check the ICM settings in transaction RZ10 or RZ11. Ensure that the parameters are set correctly for HTTP services.
  Restart the ICM if necessary. You can do this through transaction SMICM.
  
  
  
  Monitor System Load:
  
  Use transaction SM50 or SM66 to monitor the system load and check if there are any performance issues.
  If the system is under heavy load, consider optimizing performance or scaling resources.
  
  
  
  Check Logs:
  
  Review the ICM logs for any error messages or warnings that could provide more context about the issue. You can find logs in transaction SMICM under the "Log File" option.
  
  
  
  Service Maintenance:
  
  If the service is down for maintenance, check with your system administrator or the relevant team to get updates on when the service will be available again.
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  SICF: Service Hierarchy Maintenance
  SMICM: ICM Monitor
  RZ10: Profile Maintenance
  RZ11: Profile Parameter Maintenance
  SM50/SM66: Process Overview
  
  
  
  SAP Notes: Check for any relevant SAP Notes that may address specific issues related to the ICM or HTTP services.
  
  
  Documentation: Refer to the official SAP documentation for more detailed information on configuring and troubleshooting ICM and HTTP services.
  
  
  By following these steps, you should be able to identify the cause of the SCLNT_HTTP403 error and implement a solution to resolve it.