subscription_created Event - Upstack Data

Fires when a subscription record is created in your billing system. This may precede first payment for trials.

JavaScript

window._upstack('track', 'subscription_created', {
  subscriptionId: 'sub_def456',
  accountId: 'acct_abc123',
  planId: 'plan_pro_monthly',
  planName: 'Pro Plan',
  billingInterval: 'month'
});

Properties

Property	Type	Required	Description
subscriptionId	string	Yes	Subscription identifier
accountId	string	Yes	Account identifier
planId	string	Yes	Plan identifier
planName	string	No	Plan display name
billingInterval	string	No	`day`, `week`, `month`, or `year`

When to Fire

When subscription object is created in Stripe
May precede first payment (for trials)
After checkout session completes

Stripe Webhook

Maps to customer.subscription.created.