GitLab Redirect URI for project import invalid

I created my own GitLab CE Instance and want to setup the importer for my projects from GitLab.com

I followed all steps from Integrate your server with GitLab.com | GitLab (which are quite unclear in my opinion) but when I click on “GitLab.com” in the Import Project View I get redirected to GitLab.com with the error “The redirect URI included is not valid.”
I tried various solutions from google (like adding a / at the end) but none of them worked.

http://code.xxxx.yyy/import/gitlab/callback
http://code.xxxx.yyy/users/auth/gitlab/callback

These are my callback URLs (with domain censored). Using https:// didn’t work as well.

The same error occurs when trying to sign up with gitlab.

Agree, I have the same issue and unable to import project via gitlab.com

Same issue here. I guess that something have to be configured on the private instance to activate these callback urls, but i didnt find what to do yet.

I tried all solutions found so far but none of them is working.
Also, I tried with https with both the URI which leads me to error below,

The requested scope is invalid, unknown, or malformed.

I am experiencing exact same issue.

I have tried using EE and CE but hit same snag. Because of the issue, I am currently unable to import or even integrate GitLab SaaS with the self-hosted Gitlab.

Try making the callback urls https instead of http like this “https://your-personal-gitlab.example.com/import/gitlab/callback”. That fixed it for me.
If you are using http and not https, then leave it at http.