How To Fix SRTWEB129 - Cannot determine host ICF node (root for external alias)

SAP Error Message - Details

• Message type: E = Error

• Message class: SRTWEB - Messages for Web Administration UI

• Message number: 129

• Message text: Cannot determine host ICF node (root for external alias)

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SRTWEB129 - Cannot determine host ICF node (root for external alias) ?

  The SAP error message SRTWEB129: Cannot determine host ICF node (root for external alias) typically occurs in the context of SAP Web Services or when using the SAP Integration Framework. This error indicates that the system is unable to resolve the Internet Communication Framework (ICF) node associated with the external alias specified in the configuration.
  Causes:
  
  Incorrect Configuration: The external alias may not be correctly configured in the SAP system. This could be due to a typo or incorrect settings in the ICF nodes.
  Missing ICF Node: The required ICF node may not exist or may not be activated in the SAP system.
  Authorization Issues: The user or service trying to access the ICF node may not have the necessary authorizations.
  Network Issues: There could be network-related issues preventing the system from resolving the host or accessing the ICF node.
  Transport Layer Issues: If the system is in a transport landscape, the necessary configurations may not have been transported correctly.
  
  Solutions:
  
  
  Check ICF Configuration:
  
  Go to transaction SICF and check if the ICF node for the external alias exists.
  Ensure that the node is activated. If it is not, activate it.
  
  
  
  Verify External Alias:
  
  In transaction SOAMANAGER, check the configuration of the web service and ensure that the external alias is correctly defined.
  Make sure that the external alias points to the correct ICF node.
  
  
  
  Authorization Check:
  
  Ensure that the user or service account has the necessary authorizations to access the ICF node. You can check this in transaction SU53 after attempting to access the service.
  
  
  
  Network Configuration:
  
  Verify that there are no network issues preventing access to the ICF node. Check firewall settings, DNS resolution, and other network configurations.
  
  
  
  Check Transport Requests:
  
  If the configuration was recently transported, ensure that all necessary objects were included in the transport request and that they were imported correctly.
  
  
  
  Review Logs:
  
  Check the system logs (transaction SM21) and the application logs (transaction SLG1) for any additional error messages that might provide more context.
  
  
  
  Related Information:
  
  ICF Nodes: The Internet Communication Framework (ICF) is a framework that allows SAP systems to communicate over the internet. Each service is represented by an ICF node.
  SOAMANAGER: This transaction is used for managing web services in SAP, including configuration and monitoring.
  Authorization Objects: Ensure that the relevant authorization objects are assigned to the user roles that are trying to access the web service.
  
  By following these steps, you should be able to diagnose and resolve the SRTWEB129 error in your SAP system. If the issue persists, consider reaching out to SAP support for further assistance.