Using my Shopify online store to make in-person sales at a physical store or pop-up setting

Shopify POS (Point Of Sale) is what you are looking for. It is basically an app that lets Shopify merchants make in-store sales. It lets you process orders, take payment, swipe credit cards and produce receipts. The POS app can easily be synced with your online store. Just buy a Shopify card reader at their online hardware store and accept payments anywhere. To learn more about Shopify POS go here - https://www.shopify.com/pos The get the card reader on Shopify's hardware store go here -https://hardware.shopify.com/products/shopify-tap-chip-card-reader