transactionId / orderId

Unique identifier for the order. Use either transactionId or orderId — they’re interchangeable.

window._upstack('track', 'purchase', {
  transactionId: 'ORD-2026-001',  // or orderId: 'ORD-2026-001'
  value: 149.99,
  currency: 'USD'
});

Type	Required	Events
string	Yes for purchase/refund	purchase, refund

For Shopify stores, this is typically the Shopify order ID (e.g., shopify_order_5678901234).

orderName

Human-readable order number shown to customers.

The monetary value of the order.

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