AI for business

So I don’t know much about AI, so please tell me if there is a better subreddit to post this in. I am thinking it could help me with my business, but I don’t know how to do it. So pretty much I have a car repair shop and I have a website where I list different car parts that a customer may need. These car parts I order when a customer needs them, so I don’t have them in store. These parts are not always in stock, so I can’t just have them listed in my website assuming they are available. So my question is- how can I use AI to link the 2 websites and automatically update whether these parts are in stock or not?