You can create subtasks in your tasks in Azendoo. Subtasks are just like any other task, except that they are linked to their parent task.

To create subtasks click on a task from any task list to open the task card.

In the task card, you will see a field named “Add a subtask”. Click on the field and give your first subtask a label. Hit ‘Enter’ on your keyboard to create your subtask. You can open your subtasks by clicking on the subtask label.

You can continue adding as many subtasks as you want.

As soon as a task has at least one subtask, a progress bar will appear both in the task card and the task list. This progress bar enables you and your team members to see the progress of the task at a glance.
 

You can change the order of the subtasks in the parent task taskcard with a simple drag&drop.

You can assign subtasks from the parent task card, or from the subtask task card. Here is a quick GIF about how to do it.

Subtasks assigned to team members will appear in their personal task lists or task board view just like any other task.

Subtasks are not shared by default. In order to share a subtask in a subject or with team members, you need to open the subtask taskcard.

Then, share it like any other task by clicking on Share on and selecting the appropriate subject(s).

The subtask will appear in the subject task list or task board view just like any other task.

You can also add followers so your team mates know about this subtasks and can collaborate with you and get notified of its progress

Since subtasks are actual tasks, they will count in subject analytics and time tracking just like any other task would depending how on each subtask is shared.

If you have subtasks in a recurring task, the subtasks and their content will be present in the next occurrence of the task. This is particularly useful for big recurring tasks.

Your choice. You have the option to copy subtasks or not. Read this article about task copy and this article on subject copy to find out exactly how it works.

Yes. If a recurring task has subtasks, these subtasks (and subtask's subtasks) will be copied and attached to the new occurrence of the parent task.

Subtasks can become sections. To do so, open the subtask and click on the task menu, then select turn into a section. The subtask will become a section in each subject it is shared on, as well as in the parent task card.

Subtasks can be deleted from their parent task via the X icon on the right of the subtask label, or individually just like any other task. 

Open the subtask's taskcard and click on the three dots on the top right corner to open the dropdown menu. Select Delete and confirm.

If you delete a task that is parent and child at the same time (a subtask that has subtasks of its own), the parent task will remain, however the children tasks will be deleted by default.

You can choose to keep a task's subtasks upon deletion. This will result in deleting only the task selected. All of its subtasks will be dissociated from their parent task.