Unfortunately, Clockify doesn’t support subtasks. However, I have noted down your suggestion, however currently we don’t have plans for adding more hierarchical levels.
If we decide to develop this feature, I will let you know
At the moment we do not have the update on this features implementation.
There are certain workarounds that could help, however if every task has its own tasks that differs one from another, the workaround wouldn’t work.
The workaround would include the usage of our Custom fields which can be filtered in the reports afterwards but these Custom fields are set on the level of project (all tasks would have same options) and Team members are offered to fill in this part while creating the time entry.
With the current design of the app, the custom fields can not be assigned to tasks to create sub-tasks, they are mostly attached to entries, with the option to have them in the project settings for someone to populate the meta-data needed.
Tags can also work as sub-tasks, another option for additional categorization, but they are also attached to entries.