#napolean-solo_api
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clever holly
hey there 👋 so essentially, you want the addition of the new item to be conditional on the payment's success (i.e. if the payment fails, the subscription update never applies) - is that correct?
clever holly
the Pending Updates feature is designed for exactly this use case: https://docs.stripe.com/billing/subscriptions/pending-updates
if you pass payment_behavior=pending_if_incomplete and proration_behavior=always_invoice when calling Update Subscription, the update will only be applied after the payment succeeds
otherwise, the subscription remains in the pre-update state
humble moat
so if it was active, it will remain active right?
clever holly
yep!
humble moat
okay but how is the invoice behaviour handled in this case? Usually, stripe retries but after a given number of retries it usually changes the subscription to incomplete or past_due right? so in this case what happens to a stale invoice by which i mean if the user never pays for it.
clever holly
if the invoice isn't paid, the pending update will expire after 23 hours, and Stripe voids the invoice
https://docs.stripe.com/billing/subscriptions/pending-updates#expiration
humble moat
alright gotcha!