akam-proration | Stripe Developers | Page 1

indigo pike Sep 26, 2022, 9:18 PM

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Hello!

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Give me a minute to read through this

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Yes, you can do this - at the end of the first quarter you'd update the subscription from quantity: 100 -> quantity: 150 and also set proration_behavior: always_invoice(https://stripe.com/docs/api/subscriptions/update#update_subscription-proration_behavior). This will immediately update the Subscription, calculate any needed prorations because of the quantity change, and then invoice them immediately. Because you're just updating the quantity we won't reset the billing cycle anchor (we don't reset the billing cycle anchor is select situations like when a trial ends or you move from a yearly -> monthly price)

winged flame Sep 26, 2022, 9:23 PM

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oh, ok. i thought i saw somewhere that any prorating behavior like this automatically reset the anchor. glad to know it might not

indigo pike Sep 26, 2022, 9:23 PM

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Yeah you can read a bit more in the API reference for updating a subscription (https://stripe.com/docs/api/subscriptions/update) we only update the anchor if it' s necessary 🙂

winged flame Sep 26, 2022, 9:30 PM

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when i do that in test mode, only updating qty, with proration on, and invoice immediately, I only see an invoice that includes the prorated amount + the next year's total. I can see the remaining time on the new qty, the unused time on the prior qty, but also a line item for the next year's term at the new qty

indigo pike Sep 26, 2022, 9:31 PM

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Are you doing this through the API or the dashboard?

winged flame Sep 26, 2022, 9:32 PM

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That was via dashboard. Eventually would be api

indigo pike Sep 26, 2022, 9:34 PM

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Yeah that would explain it - the dashboard is using create_prorations under the hood (which has different behavior from always_invoice). If you use always_invoice with the API you should see the behavior you're aiming for

#akam-proration