How To Fix CLB456 - URL could not be mapped to its external representation

SAP Error Message - Details

• Message type: E = Error

• Message class: CLB - SAIL: Common messages

• Message number: 456

• Message text: URL could not be mapped to its external representation

What causes this issue?

The mapping of a URL from internal to external representation failed.

System Response

The URL mapper was called, but could not find any mapping information in
table HTTPURLLOC for the given combination of host and port. The mapper
was informed that this situation had to be logged.
Depending on the context, this defect is the result of an exception
that interrupted the application. Especially, during the distribution of
business object notifications, the Customizing parameter determines
whether the processing is interrupted.

How to fix this error?

For the notification scenario<(>,<)> see instructions in the next
section.

Procedure for System Administrators

For the URL mapping, table HTTPURLLOC is used as described in the
notification guide.
A new Customizing indicator, <LS>Mapping Exception</>, is available for
Customizing activity<DS:SIMG.S_JAM_SERVER>Server Settings
</>(transaction CLB_PLATF). It controls error handling when mapping URL
links:
If the checkbox is selected, an exception is raised when URL mapping is
not successful. The exception results in erroneous entries in the bgRFC
queue of the Gateway hub.
To prevent an exposure of your internal server IDs to the internet, you
must select this checkbox and maintain table HTTPURLLOC. To do so, run
transaction SE16 and call up table HTTPURLLOC.
Maintain table HTTPURLLOC as follows:
In the <LS>PROTOCOL </>field, enter the protocol that the external
communication uses (HTTPS in the case of SAP Jam ? use SSL whenever
possible).
In the <LS>FOR_DOMAIN </>field, enter the external representation of the
URL, for example, <LB>www.saptest.com</>.
In the <LS>APPLICATN</> field, specify the same application ID as used
in Customizing activity
<DS:SIMG.S_CLB_APPLI>Application-Specific Server Assignment</>.
In the <LS>HOST </>and <LS>PORT </>fields, enter the internal proxy
information, for example, <LB>lcfsg2hd </>and <LB>8080</>.
<ZH>Notes:</>
The HTTPURLLOC entries represent an inside->out mapping that corresponds
to the outside->in mapping at your reverse proxy or web dispatcher.
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
example, 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 CLB456 - URL could not be mapped to its external representation ?

  The SAP error message CLB456 ("URL could not be mapped to its external representation") typically occurs in the context of SAP's Content Lifecycle Management (CLM) or when dealing with external content repositories. This error indicates that the system is unable to resolve a URL to its corresponding external representation, which can happen for several reasons.
  Causes:
  
  Incorrect URL Configuration: The URL provided may not be correctly configured in the system or may not point to a valid resource.
  Missing External Representation: The external representation (like a document or a file) that the URL is supposed to map to may not exist or may have been deleted.
  Authorization Issues: The user may not have the necessary permissions to access the external resource.
  Network Issues: There may be network connectivity problems preventing access to the external resource.
  System Configuration: The system may not be properly configured to handle external URLs, or there may be issues with the content repository settings.
  
  Solutions:
  
  Verify the URL: Check the URL for correctness. Ensure that it is properly formatted and points to a valid resource.
  Check External Representations: Ensure that the external representation exists in the system. If it has been deleted or moved, update the URL accordingly.
  Review Authorizations: Ensure that the user has the necessary permissions to access the external content. Check roles and authorizations in the SAP system.
  Network Connectivity: Test the network connection to ensure that there are no issues accessing the external resource. You can try accessing the URL from a web browser or using tools like ping or curl.
  System Configuration: Review the configuration settings for the content repository in SAP. Ensure that the content repository is correctly set up to handle external URLs.
  Check Logs: Look into the SAP application logs (transaction SLG1) for more detailed error messages that might provide additional context about the issue.
  
  Related Information:
  
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message. SAP frequently updates its knowledge base with solutions for common problems.
  Documentation: Refer to the official SAP documentation for Content Lifecycle Management or the specific module you are working with for more detailed configuration and troubleshooting steps.
  Community Forums: Engage with the SAP Community or forums where other users may have encountered similar issues and can provide insights or solutions.
  
  If the problem persists after trying the above solutions, consider reaching out to SAP support for further assistance.