Actually, you should follow the official operation. The corresponding settings, collection, and contents are actually available at the official level. I'll take an excerpt for your reference:

Add a store to the homepage

With a Facebook store, you can display and sell goods to users directly through Facebook. Customers can buy goods directly from your Facebook store.

to add a store to the Facebook homepage: click the store function option on the homepage. If you don't see this feature option, you can change the homepage template to a shopping template. Click to start using. In the beginning step, fill in the currency, address and company email details. Click Next. Where is your place of business now? In this step, select your state and provide the state tax registration number. Click Next or skip for a while. What are you selling now? In this step, select your business category and click Next. In the step of collecting money through Facebook, fill in your tax details and business representative information. Click Next. In the step of binding bank account, fill in your preferred bank account details. Click Next. In the step of setting your preferences, set your delivery options, return policy and customer service email address. Click finish.

please note that by adding a store, you agree to our merchant terms. After you add at least one product and get approval, customers will see the store on your home page.

if you meet the requirements, the goods in your store may be displayed in the Marketplace. You can also use the Facebook store to display products for Instagram shopping.