I have a Redmine and a GitLab. I try to configure the Redmine service in Gitlab but it only asks for 3 Redmine URLs (projectURL, issueURL newIssueURL) and no login / password nor API Key.
Obviously the "Test settings" button raises an error:
We tried to send a request to the provided URL but an error occurred "
Is it possible to use a "private" redmine with gitlab?