info: To determine the technical writer assigned to the Stage/Group associated with this page, see https://about.gitlab.com/handbook/product/ux/technical-writing/#assignments
| `%{source_branch}` | The name of the branch being merged. | `my-feature-branch` |
| `%{target_branch}` | The name of the branch that the changes are applied to. | `main` |
| `%{title}` | Title of the merge request. | `Fix tests and translations` |
| `%{issues}` | String with phrase `Closes <issue numbers>`. Contains all issues mentioned in the merge request description that match [issue closing patterns](../issues/managing_issues.md#closing-issues-automatically). Empty if no issues are mentioned. | `Closes #465, #190 and #400` |
| `%{description}` | Description of the merge request. | `Merge request description.`<br>`Can be multiline.` |
| `%{reference}` | Reference to the merge request. | `group-name/project-name!72359` |
| `%{first_commit}` | Full message of the first commit in merge request diff. | `Update README.md` |
| `%{first_multiline_commit}` | Full message of the first commit that's not a merge commit and has more than one line in message body. Merge request title if all commits aren't multiline. | `Update README.md`<br><br>`Improved project description in readme file.` |
| `%{reviewed_by}` | Line-separated list of the merge request reviewers, based on users who submit a review via batch comments, in a `Reviewed-by` Git commit trailer format. | `Reviewed-by: Sidney Jones <sjones@example.com>`<br>`Reviewed-by: Zhang Wei <zwei@example.com>` |
| `%{approved_by}` | Line-separated list of the merge request approvers in a `Approved-by` Git commit trailer format. | `Approved-by: Sidney Jones <sjones@example.com>`<br>`Approved-by: Zhang Wei <zwei@example.com>` |
| `%{merged_by}` | User who merged the merge request. | `Alex Garcia <agarcia@example.com>` |
| `%{co_authored_by}` | Names and emails of commit authors in a `Co-authored-by` Git commit trailer format. Limited to authors of 100 most recent commits in merge request. | `Co-authored-by: Zane Doe <zdoe@example.com>`<br>`Co-authored-by: Blake Smith <bsmith@example.com>` |