Crosslinking issues

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There are several ways to mention an issue or make issues appear in each other's Linked issues section.

For more information on GitLab Issues, read the issues documentation.

From commit messages

Every time you mention an issue in your commit message, you're creating a relationship between the two stages of the development workflow: the issue itself and the first commit related to that issue.

If the issue and the code you're committing are both in the same project, add #xxx to the commit message, where xxx is the issue number.

git commit -m "this is my commit message. Ref #xxx"

Since commit messages cannot usually begin with a # character, you may use the alternative GL-xxx notation as well:

git commit -m "GL-xxx: this is my commit message"

If they are in different projects, but in the same group, add projectname#xxx to the commit message.

git commit -m "this is my commit message. Ref projectname#xxx"

If they are not in the same group, you can add the full URL to the issue (https://gitlab.com/<username>/<projectname>/-/issues/<xxx>).

git commit -m "this is my commit message. Related to https://gitlab.com/<username>/<projectname>/-/issues/<xxx>"

Of course, you can replace gitlab.com with the URL of your own GitLab instance.

Linking your first commit to your issue is relevant for tracking your process with GitLab Value Stream Analytics. It measures the time taken for planning the implementation of that issue, which is the time between creating an issue and making the first commit.

From linked issues

Mentioning linked issues in merge requests and other issues helps your team members and collaborators know that there are opened issues regarding the same topic.

You do that as explained above, when mentioning an issue from a commit message.

When mentioning issue #111 in issue #222, issue #111 also displays a notification in its tracker. That is, you only need to mention the relationship once for it to display in both issues. The same is valid when mentioning issues in merge requests.

From merge requests

Mentioning issues in merge request comments works exactly the same way as they do for linked issues.

When you mention an issue in a merge request description, it links the issue and merge request together. Additionally, you can also set an issue to close automatically as soon as the merge request is merged.

From branch names

When you create a branch in the same project as an issue and start the branch name with the issue number, followed by a hyphen, the issue and MR you create are linked. For more information, see Prefix branch names with issue numbers.