You mean you want facebook shopping or instagram shopiing.
is your product dropshipping or your own product, is your product description and name unique and plagiarism free?
did you installed facebook app?
is your shopify theme has updated JSON-LD ?
If helpful then please Like and Accept Solution.
Want to modify or custom changes on store Hire me.
Feel free to contact me on firstname.lastname@example.org regarding any help
Shopify Expert | Whatsapp: 00971568836211