| `description` | A name for the issue tracker (to differentiate between instances, for example) |
| `project_url` | The URL to the project in YouTrack which is being linked to this GitLab project |
| `issues_url` | The URL to the issue in YouTrack project that is linked to this GitLab project. Note that the `issues_url` requires `:id` in the URL. This ID is used by GitLab as a placeholder to replace the issue number. |
| `new_issue_url` | This is the URL to create a new issue in YouTrack for the project linked to this GitLab project. **This is currently not being used and will be removed in a future release.** |
Once you have configured and enabled YouTrack you'll see the YouTrack link on the GitLab project pages that takes you to the appropriate YouTrack project.