You can run a [GitLab Mattermost](https://gitlab.com/gitlab-org/gitlab-mattermost)
service on your GitLab server. Mattermost is not part of the single application that GitLab is. There is a good integration between [Mattermost and GitLab](https://mattermost.com/solutions/mattermost-gitlab/), and our Linux package allows you to easily install it. But it is a separate application from a separate company.
service on your GitLab server. Mattermost is not part of the single application that GitLab is. There is a good integration between [Mattermost and GitLab](https://mattermost.com/solutions/mattermost-gitlab/), and our Linux package allows you to install it. **However, Mattermost is a separate application from a separate company.** GitLab Support cannot help you with Mattermost-specific questions beyond the integration with GitLab. If you need help with Mattermost itself, see the [community support resources](#community-support-resources).
