ActionTodoistUpdated September 2026
How do I mark a Todoist task complete?
Short answer: You can complete task in Todoist by hand from its own interface, but it won’t repeat itself. On TinyCommand, add the Todoist Complete Task action to a workflow, map its 1 input from any upstream app, and it runs automatically every time the trigger fires. No code, and a free tier to start.
Inputs
The fields this action accepts.
Every field can be mapped from an upstream trigger, AI step, table row, or hard-coded literal.
| Field | Type | Required | Description |
|---|---|---|---|
Task ID task_id | string | Required | Todoist task ID — numeric string. Find via List Tasks. |
Sample request
{"task_id": "e.g. 7654321"}
Returns
{"success": true}
Use these fields in downstream nodes for routing, logging, or error handling.
Triggered by
Apps that pair well as the trigger for Complete Task.
Any of these apps can fire this action as part of a workflow.
FAQ
Questions about Complete Task.
What does the Complete Task action do in Todoist?
Closes a Todoist task. Recurring tasks roll forward to their next due date instead of disappearing.
What inputs does Complete Task require?
Required: Task ID. 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 Todoist returns an error?
The run history shows the failed step with its input and the error message Todoist 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 Complete Task support batch operations?
Run Complete Task 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 Todoist's rate limits.
More actions
Other Todoist actions.
Action
Add Comment
Adds a comment to an existing Todoist task or project. Use it to log automation activity, attach context from another system, or post status updates.
ActionCreate Label
Creates a new personal label in Todoist, optionally with a color. Useful for syncing your tag taxonomy from another system.
ActionCreate Project
Creates a new project in Todoist with name, color, parent project, and view style (list, board, calendar). The starting point for project-templating flows.
ActionCreate Section
Creates a new section inside a Todoist project. Sections are how board-view columns are organized.
ActionCreate Task
Creates a new task in Todoist with content, description, project, section, due date (supports natural language like "next monday"), priority, labels, and assignee.
ActionDelete Comment
Permanently deletes a comment from Todoist by ID. Used for cleanup of automation-posted comments.