Please note if you're an enterprise service client there is no need to assign code reviews to PullRequest using the method below. All of your repositories' pull requests will automatically be assigned. Email email@example.com if you're interested in our enterprise services.
Make sure the GitHub PullRequest app has been added to the GitHub organization that contains the repositories you require for code review.
You can verify PullRequest has been installed and added by checking here.
From the PullRequest dashboard select Reviews from the sidebar menu. Be sure the name of the organization (same name as the GitLab Group) you need to request a review for has been selected from the drop-down at the top of the screen.
Click the Request Review button on any of the code reviews you need to assign to PullRequest.
Once assigned, the pull request's status will change to Pending. Once a reviewer has been selected and has started work, the status will change to In Progress.
Email firstname.lastname@example.org if you have any questions. We're here to help!