I personally think if your Shopify integration contains these features then thats great.
1. Showing different products in Carousal. That can be purchased directly through the bot.
2. Adding wheel of fortune (making a random flow to award some kind of random discount. For example if we ask 3 questions like name, email, phone number etc. based on the questions annswered, customer should get a discount. I saw that feature in Manychat when I used that.
3. Add a feature in which if user abandons chat, bot automatically sends the message like after 15 minutes of no reply.