Once you have configured and enabled Custom Issue Tracker Service you'll see a link on the GitLab project pages that takes you to that custom issue tracker.
## Referencing issues
Issues are referenced with `#<ID>`, where `<ID>` is a number (example `#143`).
So with the example above, `#143` would refer to `https://customissuetracker.com/project-name/143`.
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- Issues are referenced with `ANYTHING-<ID>`, where `ANYTHING` can be any string and `<ID>` is a number used in the target project of the custom integration (example `PROJECT-143`).
-`ANYTHING` is a placeholder to differentiate against GitLab issues, which are referenced with `#<ID>`. You can use a project name or project key to replace it for example.
- So with the example above, `PROJECT-143` would refer to `https://customissuetracker.com/project-name/143`.
