Do I need to set a business Facebook before I connect it to my store? All I have

[1-]

Do I need to set up a separate Facebook account for my store?

[William_H]

You do not NEED to set up anything on Facebook to use Shopify. However, if you are planning on using Shopify's Facebook Sales Channel, you should definitely set up a facebook page for your business and then link that newly created page to your Shopify store. 

If you are planning on advertising through Facebook, I would recommend setting up a Business Manager account as well.