How To Fix CLB455 - No mapping found for host &1, port &2, application &3

CLB455 - Overview

• Message type: E = Error

• Message class: CLB - SAIL: Common messages

• Message number: 455

• Message text: No mapping found for host &1, port &2, application &3

What causes this issue?

The system tries to convert a URL to the external representation, with
the aid of mapping table HTTPURLLOC:
However, no entry could be found for the given combination of host
&SYST-MSGV1&, port &SYST-MSGV2& and application &SYST-MSGV3&.

System Response

The URL conversion has been interrupted. An exception has been raised.

How to fix this error?

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Procedure for System Administrators

Add the missing entry in table HTTPURLLOC, with aid of transaction SE16.
Note: You can also specify a default entry, with host and port set to *,
if it is not possible to specify all application servers at design time
(for instance, due to virtualization).

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message CLB455 - No mapping found for host &1, port &2, application &3 ?

  The SAP error message CLB455 indicates that the system is unable to find a mapping for the specified host, port, and application. This typically occurs in scenarios involving the SAP Cloud Platform or when integrating with external systems. Here’s a breakdown of the cause, potential solutions, and related information:
  
  Cause:
  
  Incorrect Configuration: The host, port, or application name specified in the configuration might be incorrect or not properly set up in the system.
  Missing Mapping: The required mapping for the specified host and port may not exist in the system's configuration.
  Network Issues: There could be network connectivity issues preventing the system from reaching the specified host.
  Service Unavailability: The application or service you are trying to connect to might be down or not running.
  
  
  Solution:
  
  
  Check Configuration:
  
  Verify the configuration settings for the host, port, and application in the relevant SAP transaction (e.g., SOAMANAGER for web services).
  Ensure that the values are correctly entered and correspond to the