Login sentry using superuser
Click on Settings → Integrations
After that, click on the GitLab row Install button, After that pop-up open follow the process and click on Add Installation
After that, fill-up the form and submit the form
After that, you see the GitLab row show as Installed, then click on Configure
After that, click on Add Repository and select repository
After that, click on Project’s left side menu select project click on any issue
In issue detail right side click on Link GitLab Issue
Select GitLab project repository and click on Create issue
Check issue will appear in the GitLab selected project repository