GitLab for Jira Integration Issue: "Failed to sign in to GitLab" Error Despite Successful OAuth Flow

[nick]

Hello Atlassian Community,

I am experiencing an issue while setting up GitLab for Jira integration with my self-managed GitLab account. I have followed all the steps provided in the documentation, and I am able to sign in to GitLab during the OAuth flow. However, when the flow returns to Jira, I encounter an error message stating "Failed to sign in to GitLab."

Interestingly, despite the error message, I can add namespaces, and the header shows that I am signed in to GitLab as "@nickverbeet," which is the correct account. When I refresh the page, I am prompted to sign in to GitLab again.

I have tried troubleshooting the issue by checking my account settings and making sure the integration settings are configured correctly, but I am still encountering this problem. I am seeking guidance from the community on how to resolve this issue or any suggestions for further troubleshooting steps.

Thank you in advance for your assistance!

[John Byrd]

Same issue here.

[kingwu]

Facing the same issue.

i followed the section - Connect the GitLab.com for Jira Cloud app for self-managed instances
https://archives.docs.gitlab.com/15.8/ee/integration/jira/connect-app.html

Then face this issue.
So, we should follow the section - Install the GitLab.com for Jira Cloud app for self-managed instances?

Thanks,

[Md Emran Hosen]

I am having the same problem in 15.10, anybody found the solution ?

[Tobias Reim]

I think the issue is that you have to 

1. Clear the Trusted and Confidential checkboxes.

as stated here: https://docs.gitlab.com/ee/administration/settings/jira_cloud_app.html#set-up-your-instance

[Md Emran Hosen]

I tried that, But no luck