Here is the document which I'm following. Under the section of Event code examples, the "product_ids" key is there.<script>
pintrk('track', 'checkout', {
value: 10.00,
order_quantity: 2,
currency: 'USD',
event_id: 'eventId0001',
product_ids: ['1414', '1415'] }
);
</script>
<noscri...