Cannot connect to asana using Azure Data Factory nor Power BI

Hi All,
I used Power BI to connect to Asana and create reports, I can only see the TASKS and not the SUB-TASKS, which is a bummer, I then tried to connect to Asana using Azure Data factory and I followed all the steps provided in the below link and still no luck

Can someone please guide me? When I create the data set in ADF , the connection is successful, but when I click on preview the data I get the below error

Rest call failed with client error, status code 403 Forbidden, please check your activity settings.
Request URL: Log in - Asana.

Move Work Forward - Asana