What is Oberlo app?
Oberlo is an app that lets you source products from AliExpress suppliers and gives you access to resources and courses on how to build an online business.
How to use Oberlo app in Debutify?
You do not need to integrate the Oberlo app Debutify.
Oberlo app just imports products directly to Shopify for it to be displayed in Debutify themes.
Here is a guide to the Oberlo app https://help.shopify.com/en/manual/products/dropshipping/oberlo/getting-started/setup-oberlo