vlad-ko_subscription-intent-mismatch | Stripe Developers | Page 1

tiny sundialBOT Sep 29, 2025, 4:09 PM

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abstract glade Sep 29, 2025, 4:10 PM

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so basically it is failing on mobile side like that

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queen trout Sep 29, 2025, 4:10 PM

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What exactly is the error you are seeing, what steps are you taking, and when does the error occur?

abstract glade Sep 29, 2025, 4:11 PM

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on backend i rewrite the logic - initially i was looking for latestInvoiceObject?.paymentIntentObject?.clientSecret

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i want to collect the payment details in advance and give the users free period for N days

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i change the logic to

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hasTrialOption -> stripeSubscription.pendingSetupIntentObject.clientSecret

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hasNoTrialOption -> stripeSubscription.latestInvoiceObject.paymentIntentObject.clientSecret

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subscription setup is like that

queen trout Sep 29, 2025, 4:12 PM

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And it sounds like one of those options is not returning a valid client secret, right?

abstract glade Sep 29, 2025, 4:13 PM

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SubscriptionCreateParams.TrialSettings.EndBehavior.builder()
.setMissingPaymentMethod( -> MissingPaymentMethod.CANCEL

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.setPaymentBehavior(SubscriptionCreateParams.PaymentBehavior.DEFAULT_INCOMPLETE)

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.addExpand("latest_invoice.payment_intent")
.addExpand("pending_setup_intent")

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I will try now with SubscriptionCreateParams.TrialSettings.EndBehavior.builder()
.setMissingPaymentMethod( -> MissingPaymentMethod.CREATE_INVOICE

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do you need subscription id

queen trout Sep 29, 2025, 4:14 PM

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Sorry but that makes no sense to me

abstract glade Sep 29, 2025, 4:14 PM

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you can check this one sub_1SCiJMCOtHrcpcR8FrGfukuA (old code)

queen trout Sep 29, 2025, 4:14 PM

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All I'm asking is which option is resulting in the client secret error?

abstract glade Sep 29, 2025, 4:15 PM

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if i add this .setTrialPeriodDays(createRequest.trialPeriodInDays) the payment on ios is failing with the error above

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if i don't have trial -> all good (sub_1SCiHgCOtHrcpcR8sYMfEQPz)

queen trout Sep 29, 2025, 4:17 PM

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Okay so let's focus on the subscription with the trial period days

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Can you log the client secret?

abstract glade Sep 29, 2025, 4:17 PM

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will need some time add deploy the logging

queen trout Sep 29, 2025, 4:26 PM

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Wait a sec. Looking at the code screenshot, it looks like what is failing is a check to validate the client secret matches for a Payment Intent

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But you are returning a client secret for a Setup Intent

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So that's expected

abstract glade Sep 29, 2025, 4:29 PM

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pendingSetupIntentObject.clientSecret: seti_1SCjvXCOtHrcp...._secret_T91zE3T4T2n2mO2....

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latestInvoiceObject.paymentIntentObject.clientSecret: null

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Wait a sec. Looking at the code screenshot, it looks like what is failing is a check to validate the client secret matches for a Payment Intent
but this is wrong setup on client (ios) side

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?

queen trout Sep 29, 2025, 4:30 PM

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Sorry but none of that makes any sense to me

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Why would this be a wrong setup on client side? what do you mean by that?

abstract glade Sep 29, 2025, 4:31 PM

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sorry i am backend dev and ios development is done by someone else

queen trout Sep 29, 2025, 4:32 PM

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And that is where the error is being thrown, correct?

abstract glade Sep 29, 2025, 4:32 PM

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yes, on ios payment sheet or what is used by the dev guy

queen trout Sep 29, 2025, 4:32 PM

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STPPaymentIntentParams.isClientSecretValid(secret)

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Yeah so the problem here is this like of code is checking for a Payment Intent client secret

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When you include a free trial, you are returning a Setup Intent client secret

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The iOS code is not handling that properly

abstract glade Sep 29, 2025, 4:33 PM

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so he needs to know if we have a trial option or to tell him what kind of secret i will send

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and based on that he needs to validate different client secrets

queen trout Sep 29, 2025, 4:34 PM

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The iOS code needs to check whether or not the Subscription includes a trial and route the code execution properly

abstract glade Sep 29, 2025, 4:35 PM

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can sdk do the check or should i provide him the details in the payload from our backend (if you know, we will check it any way)

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i think it is clear to me now

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thanks

queen trout Sep 29, 2025, 4:36 PM

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Great, happy to help

abstract glade Sep 29, 2025, 4:36 PM

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i was thinking that it is something like that

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but I was not sure when I have SetupIntent and PaymentIntent

queen trout Sep 29, 2025, 4:38 PM

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When Subscriptions have free trials, we send a Setup Intent so you can collect payment method details

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But when there are no free trials, there is a Payment Intent so you can collect payment

abstract glade Sep 29, 2025, 4:46 PM

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thanks, mate and have a great day

queen trout Sep 29, 2025, 4:46 PM

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You too 👋

#vlad-ko_subscription-intent-mismatch