Saving credit card of a Custom Account's customer in Stripe - stripe-payments

Question

We are building a Platform.
In our Platform we create Custom Connect Accounts in Stripe.
For these Custom Connect Account we create customer accounts. Essentially the customer accounts are end-customers of our Custom Connect (Company)accounts in the Platform.
Now we would like to store credit card information of the customer accounts (for a particular custom connect account).
We followed the instructions here to create a setupIntent. The code is as below, here the stripe_account is the account_id of the custom connect (Company) account and customer['id'] is the id of the customer account -
intent = stripe.SetupIntent.create(
customer=customer['id'],
stripe_account = stripe_account
)
We pass this intent.client_secret to our front end. In the Javascript we are calling this -
setupForm.addEventListener('submit', function(ev) {
ev.preventDefault();
stripe.confirmCardSetup(
clientSecret,
{stripe_account : stripe_account},
{
payment_method: {
card: cardElement,
billing_details: {
name: cardholderName.value,
},
},
}
).then(function(result) {
if (result.error) {
// Display error.message in your UI.
} else {
// The setup has succeeded. Display a success message.
}
});
});
But we are getting the error, No such setupintent: 'seti_1IBkyZ4ZQzThevDR3MR433aI'. Clearly the setupintent that was generated from Stripe is not being accepted here. What are we doing wrong?

Answer 1

The likely cause of this error is that you're not initializing Stripe.js with the stripeAccount the Setup Intent exists on. Your Stripe.js initialization code should look something like this:
var stripe = Stripe('pk_test_YOUR_PUBLISHABLE_KEY', {
stripeAccount: 'acct_CONNECTED_ACCOUNT_ID'
});
That will allow Stripe.js to make requests on behalf of the connected account (which is where the Setup Intent exists).