How To Fix SRT_WSP778 - Could not instantiate proxy "&1" with logical port "&2"

SAP Error Message - Details

• Message type: E = Error

• Message class: SRT_WSP - Messages for SRT WSP

• Message number: 778

• Message text: Could not instantiate proxy "&1" with logical port "&2"

Self-Explanatory Message

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Smart SAP Assistant

• What is the cause and solution for SAP error message SRT_WSP778 - Could not instantiate proxy "&1" with logical port "&2" ?

  The SAP error message SRT_WSP778 indicates that there was an issue instantiating a proxy for a web service with a specified logical port. This error typically arises in the context of SAP's web service runtime environment, particularly when dealing with service-oriented architecture (SOA) and web service proxies.
  Cause
  The error can be caused by several factors, including:
  
  
  Incorrect Logical Port Configuration: The logical port specified in the error message may not be correctly configured. This could include incorrect endpoint URLs, authentication settings, or other parameters.
  
  
  Missing or Inactive Proxy: The proxy class that is supposed to be instantiated may not exist, or it may not be active in the system.
  
  
  Authorization Issues: The user or service account attempting to access the web service may not have the necessary authorizations.
  
  
  Network Issues: There may be network connectivity issues preventing the SAP system from reaching the web service endpoint.
  
  
  Service Not Available: The web service itself may be down or not available at the specified endpoint.
  
  
  Solution
  To resolve the error, you can follow these steps:
  
  
  Check Logical Port Configuration:
  
  Go to transaction SOAMANAGER.
  Navigate to the "Web Service Configuration" section and check the logical port settings for the specified proxy.
  Ensure that the endpoint URL, authentication method, and other parameters are correctly configured.
  
  
  
  Verify Proxy Existence:
  
  Check if the proxy class exists in the system. You can do this by using transaction SE80 or SE37 to look for the proxy class.
  If the proxy does not exist, you may need to regenerate it.
  
  
  
  Check Authorizations:
  
  Ensure that the user or service account has the necessary authorizations to access the web service. This may involve checking roles and profiles assigned to the user.
  
  
  
  Test Network Connectivity:
  
  Use tools like ping or telnet to check if the SAP system can reach the web service endpoint.
  If there are network issues, coordinate with your network team to resolve them.
  
  
  
  Check Service Availability:
  
  Verify that the web service is up and running. You can do this by accessing the service URL directly in a web browser or using tools like Postman.
  
  
  
  Review Logs:
  
  Check the SAP application logs (transaction SLG1) for any additional error messages or details that may provide more context about the issue.
  
  
  
  Related Information
  
  
  Transaction Codes: 
  
  SOAMANAGER: For managing web service configurations.
  SE80: For checking and managing objects in the SAP repository.
  SLG1: For viewing application logs.
  
  
  
  Documentation: Refer to SAP Help documentation for more details on web service configuration and troubleshooting.
  
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address specific issues related to this error message.
  
  
  By following these steps, you should be able to identify and resolve the underlying cause of the SRT_WSP778 error.