WhatsApp closes sales beautifully. The problem is everything that happens before: the price list you resend twenty times a day, the stock question, the "is this still available".
You are the bottleneck
Every order waits for you to reply. Nights, Sundays and busy afternoons are sales you never see, because the buyer moved on to a seller who answered instantly with a page.
Nobody can find you
A chat conversation is invisible to search. Nothing you send in WhatsApp will ever appear in Google, so every customer has to already know you exist. A catalogue page can be found by someone who has never heard your name.
Prices drift and trust goes with them
Three versions of your price list are circulating right now and you do not know which one a customer is reading. One page, one price, updated once, ends the argument.
Keep the chat, add the storefront
This is not about replacing WhatsApp. Let the page show the catalogue, the price and the stock, and let the button hand a ready-made message to WhatsApp so you close a buyer who already decided.