carsonliu

[sly lark]

Hi there, is this a payment mode checkout session?

[trim pawn]

yes. it is a payment mode

[sly lark]

OK. The PaymentIntent will be created later when your customer attempts the payment through checkout session.

[trim pawn]

how can i double check/verified the uniqueness between payment and notification?

I guess my developer would like to ask, when the payment come back, how can it tell which order is payment successful.

[sly lark]

You can listen to the checkout.session.completed event and check the checkout session's payment_intent for payment result

[trim pawn]

would you give the same answer if my question is "
When the payment is called back, tell the server which order payment is successful"

[sly lark]

Yes. and you can also send this doc to your developer https://stripe.com/docs/payments/checkout/fulfill-orders#fulfill