lafafm

[slim marten]

Hi! should just work really, there's no specific requirement to re-authenticate.

When you add the new plan, it might be prorated or not, and it might require immediate payment or not, that depends how you make the update(https://stripe.com/docs/billing/subscriptions/upgrade-downgrade). If it requires immediate payment, that is a brand new invoice and a brand new PaymentIntent.

[vapid kiln]

So, in theory

When subscription sum is changed - the initial 3DS verification should work just fine?

We need only to authenticate some proration changes in that case?

[slim marten]

yes

[vapid kiln]

Got it

Thanks!

Oh, sorry to bother again

But what about scheduled (at period end) subscription change? It would be considered as a regular subscription payment, even if all the prices are different?

[slim marten]

yes