Go to your Shopify Dashboard. In the menu go to settings.
Go to “App & Sales Channels.” Press “Develop Apps”, when you’re there click “create an app”, name it “Store upload”, and name yourself as the developer, save that and it’ll take you to a new page.
Click on Configuration (next to Overview).
In the list search “Product listings” check the “read_product_listings” box, and then search “Products” and check the read_products” box. Scroll down and save the page.
Press install App, then press Install
You’ll come to a new page, you’ll see an area that says “reveal token”, now when you reveal that, copy it, and send me what you copied here.