Shopify API
How to get Shopify Access Token
Guide - https://youtu.be/ku8wG_RIICM
How to find Product Handles?
Check the product link: https://example.com/products/white-tshirt
In the above link, white-tshirt is the product handle.
Separate product handles with commas (',') and don't add any space between commas or product handles.