Shopify Connect
Shopify Connect has been updated to separate your online and in-person transactions. Shopify Plugin handles two channels, Shopify Connect and new ShopifyPOS Connect.
You might want online sales to become Sales Orders while POS sales become Invoices. You might want each online customer saved, while walk-ins might not be. Up to you.
Shopify Plugin offers more options for capturing, or not, sorting, or not, and whatnot.