How To Fix SRT_LPREG042 - No default port exists for proxy class '&1'

SRT_LPREG042 - Overview

• Message type: E = Error

• Message class: SRT_LPREG - Logical Port Registry

• Message number: 042

• Message text: No default port exists for proxy class '&1'

No default port is defined for this proxy class. A default port is used
whenever no logical port has been specified explicitly. You must define
one of the logical ports in this proxy class as the default port.

Error message extract from SAP system. Copyright SAP SE.

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• What is the cause and solution for SAP error message SRT_LPREG042 - No default port exists for proxy class '&1' ?

  The SAP error message SRT_LPREG042 indicates that there is no default port defined for the specified proxy class. This error typically occurs in the context of SAP's web services and integration scenarios, particularly when using the SAP Process Integration (PI) or SAP Process Orchestration (PO) systems.
  
  Cause:
  The error can be caused by several factors:
  
  Missing Configuration: The proxy class does not have a default port defined in the relevant configuration settings.
  Incorrect Proxy Settings: The proxy settings may not be correctly configured in the SAP system.
  Transport Issues: There may be issues with the transport of the proxy class or its related configuration.
  Namespace Issues: The namespace for the proxy class may not be correctly defined or may not match the expected values.
  
  
  Solution:
  To resolve the error, you can follow these steps:
  
  
  Check Proxy Configuration:
  
  Go to the transaction SPROXY in the SAP GUI.
  Locate the relevant proxy class and check if a default port is defined.
  If not, create