ActionGitLabUpdated September 2026

How do I create a GitLab MR?

Short answer: You can create gitlab merge request in GitLab by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the GitLab Create GitLab Merge Request action to a workflow, map its 7 inputs from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.

Create GitLab Merge Request in GitLab — start free
Inputs

The fields this action accepts.

Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.

FieldTypeRequiredDescription
Project ID or Path
project_id
stringRequiredProject ID or Path. Example: 123
Title
title
stringRequiredTitle. Example: Fix login redirect
Source Branch
source_branch
stringRequiredSource Branch. Example: fix/login
Target Branch
target_branch
stringRequiredTarget Branch. Example: main
Description
description
stringOptionalDescription
Assignee User ID
assignee_id
stringOptionalAssignee User ID. Example: 5
Labels
labels
stringOptionalLabels. Example: bug, review
Sample request
{
"project_id": "e.g. 123",
"title": "e.g. Fix login redirect",
"source_branch": "e.g. fix/login",
"target_branch": "e.g. main",
"description": "{{trigger.description}}"
}
Returns
{
"iid": 1,
"state": "opened",
"title": "Fix login",
"web_url": "https://gitlab.com/group/project/-/merge_requests/1"
}

Use these fields in downstream nodes for routing, logging, or error handling.

Triggered by

Apps that pair well as the trigger for Create GitLab Merge Request.

Any of these apps can fire this action as part of a workflow.

FAQ

Questions about Create GitLab Merge Request.

What does the Create GitLab Merge Request action do in GitLab?
Opens a new MR from source branch to target branch with title, description, reviewers, labels. For automation that auto-creates MRs from generated branches (dependabot-style).
What inputs does Create GitLab Merge Request require?
Required: Project ID or Path, Title, Source Branch, Target Branch. Every input accepts a static value or a variable from any upstream node in your workflow.
Can I use dynamic inputs from earlier workflow nodes?
Yes. Any field on this action can pull values from upstream nodes, whether that's a form response, a trigger payload, an AI output, or a lookup result.
What happens if GitLab returns an error?
The run history shows the failed step with its input and the error message GitLab returned, so you can fix the input and run the workflow again. Automatic retries are built into HTTP steps only, where you can also set your own retry count and delay.
Does Create GitLab Merge Request support batch operations?
Run Create GitLab Merge Request inside a loop to process each item in an array. TinyCommand does not throttle calls for you, so for large arrays add a Delay step if you need to stay within GitLab's rate limits.
More actions

Other GitLab actions.

Create GitLab Merge Request in GitLab — start free