Simple Stripe payment works in another application. Same Secret key and publishable key. But it doesn’t work in the one I am developing. And {Stripe error: No such customer: ‘cus_QJw1zGOSDW8Au4’} this error comes up.
That error means that Stripe does not have that customer registered.
You might have deleted the customer manually in Stripe dashboard or maybe calling the wrong Stripe account.
I remember that the Bubble official Stripe plugin hides the customer ID and there is no way to change it when it gets associated with a Bubble user, so if you happen to have to modify it you can’t.
Solution for this is leaving the official plugin aside and talk to Stripe via API Connector. Maybe using another plugin will also work.
Are you sure are using the stripe account for the payment flow?