Use sub-tasks

4 min read
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I. Intro
You can add multiple sub-tasks to a larger task to make it easier to manage and track task progress. A top-level parent task can have up to 4 levels of nested sub-tasks.
Usually, the creator and owners of a task can edit it. Users who can edit a task list can also edit the tasks inside the list.
Using sub-tasks requires the following permissions:
Action
Required permission
Add a sub-task
Edit permission of the target parent task.
Convert a task to a sub-task
Edit permission of both the task and its target parent task.
Convert a sub-task to a task
Edit permission of both the sub-task and its parent task.
Note: This article refers to independent tasks with neither parent tasks nor sub-tasks as "tasks".
II. Steps
Create a sub-task
You can create sub-tasks in two ways.
Add sub-tasks when creating a task
When you create a task, you can add sub-tasks to it directly, but not further nested sub-tasks.
  1. Click Tasks in the left navigation bar to open Tasks. Click New Task > New Task in the upper-right corner.
  1. In the task creation window, click the Sub-task icon.
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  1. Enter the title, set the deadline, and assign the owner. Press Enter to create the sub-task and add a new one. If you don't need to add any more, click Create.
Add sub-tasks when editing a task
You can modify a task to add sub-tasks or nested sub-tasks.
  1. When editing a task, click Add Sub-task.
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  1. Enter the task title and press Enter.
Convert a task into a sub-task
🔖
Notice: This feature is only available on Lark version 7.35 or above.
  1. Click Tasks in the left navigation bar to open Tasks.
  1. Click a task to expand its details.
  1. Click the ··· icon in the upper-right corner > Set Parent Task.
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  1. Enter a keyword to search for and select a task as the parent task.
  1. Click any blank area to save the result.
Note:
  • The search results only include tasks that you have the permission to edit.
  • The search results don't include the sub-tasks of the current task. You can't set a sub-task of the current task as the parent task.
  • You can change the parent task by setting a new parent task.
Convert a sub-task into a task
🔖
Notice: This feature is only available on Lark version 7.35 or above.
  1. Click Tasks in the left navigation bar to open Tasks.
  1. Click a sub-task to open its details.
  1. Click the ··· icon in the upper-right corner > Convert to Task.
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Manage sub-tasks
Check progress
Method 1: Click a task to view its details where you can see the progress of the sub-task(s).
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Method 2: In Tasks, check the sub-task progress number (completed/total) to the right of the task name, or click the black triangle to the left of the task name to expand the sub-task list.
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Method 3: In Tasks, click Customize and set Sub-task Progress as visible so that you can see the sub-task progress bar on the Tasks page.
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Adjust how tasks are sorted
Hover over a sub-task title, then click and drag the ⋮⋮ icon that appears on the left to adjust its position.
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III. FAQs
Can I add more sub-tasks to existing sub-tasks?
Yes. You can add up to five levels of sub-tasks.
Can I move a sibling task to make it a sub-task?
Yes. You can convert a task to a sub-task, but not on the mobile app. For more information, see "Convert a task into a sub-task" in Use sub-tasks.
Can the owner of a sub-task view and edit the parent task?
The owner of the sub-task can view the parent task. However, they cannot edit the parent task.
When all sub-tasks are completed, does this automatically complete the parent task?
No.
If I complete the parent task, will all associated sub-tasks be automatically marked as completed?
No.
Written by: Lark Help Center
Updated on 2025-02-07
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