Standard integration based on the Shopifys API. Extend has built in flexibility around, among other things, which status should trigger the integration. When an order is placed in Shopify, a real-time update of balance is triggered, which means that the balance shown in the webshop is always correct. The information from the webshop is forwarded to an external warehouse for balancing or accounting systems for invoicing and matching / settlement against Klarna, Stripe etc. This is matched via a separate API via external supplier.
More information about the integration: