Currently, it is not possible to delete a "link type" from the administration panel if it has been used on one or more artifacts. The system blocks the deletion but does not provide any information about which specific artifacts are using this link type. This situation forces administrators to either manually search through all artifacts to find where the link type is used or to abandon the cleanup, leaving obsolete link types in the system indefinitely.

When an administrator attempts to delete a link type that is currently in use, the system should inform the user and display a list of all artifacts that are using that specific link type. This would empower the administrator to navigate to the identified artifacts, remove the obsolete links, and then successfully proceed with the deletion of the link type. Ideally, this list would contain direct links to the artifacts for easy access.