Instagram shopping allows you to tag products in posts and link directly to those products on your Website so customers can do the checkout on your website store . Posts with tagged products will also show up in the shopping section of Instagram’s discover section, to be shown to potential new customers.
The Requirement to setup Instagram shopping feature
1. Your account must be created in the Supported Market
2. Facebook Page with Template Theme for Shopping
3. Facebook Shop with some Product in the catalog
4. Your Instagram account converted to Business Profile in the Shopping and retail category
5. You Must Comply with Facebook Commerce policies