Texnostar az is my website. I have 50-60 different sellers in my website. When buyers click any item they see whatsap button. I need that when buyer send us message, App will take message and send it to specified seller's whatsap number. And when seller answers, App will take message and send back to buyer's whatsap number. My aim is that buyer and seller no to see each other's whatsap number. App must be communicator between buyer and seller.
I added screenshot of my website