Merge Guest Orders Plugin

nopStation's Merge Guest Order plugin makes it easier for your customer to place an order as a guest and later merge it when customer will register with same e-mail address. When a customer places an order as a guest, they have to provide billing and shipping address details during checkout. If the same customer later creates an account using the email address which he provided in his previous billing or shipping information, the guest orders will automatically be assigned to the newly registered account.