Multilevel Tags via API

Buks Expensify Customer Posts: 1

I am trying to create multilevel tags for a policy using the API. Here is my request:

The content of the CSV file is:

This results in a single tag list containing tags 09A00, 22T017, Project. Importing this file from the UI works fine - creating two dependent levels of tags - Project, Task

What am I missing? Any help would be appreciated!