Setting up Invoice Sync Preferences
When to create a Xero invoice?
This setting determines when the integration will create an invoice in Xero based on the status of your Shopify order.

Decide which event should trigger Xero invoice creation:
Order Created: When a new order is placed.
Order Paid: When Shopify marks the order as paid (recommended for most online stores).
Order Fulfilled: When the order is shipped or completed.
Invoice Type in Xero
This setting determines the type of invoice that will be created in Xero.
Decide whether you want a draft Invoice, Awaiting-Approval Invoice, Awaiting-Payment Invoice, Paid Invoice
