To make your listings purchasable online, simply connect your paypal account. we do not see or store any of your paypal information other than your email and merchant ID to be able to send you your payments. this info is then deleted upon disconnection. if you only want to sell offline/locally, don't connect To paypal. For each listing you want to sell online, Make the availability "sold online". if you ever disconnect from paypal, ensure none of your listings are assigned the "sold Online" term, otherwise it will cause confusion for users and could lead to a temporary account suspension until the issue is resolved.