If you like personal help please contact me by clicking on my website under my name and go to contact and I am happy to provide you with personal help.
To create content API, you need to learn the Shopify API, and yes you can pull that data using REST or GraphQL, then create a Content API setup.
However I'm guessing you are more interested in a rebuild app: https://apps.shopify.com/multiple-google-shopping-feeds
User | Count |
---|---|
7 | |
6 | |
6 | |
5 | |
4 |