How can Stripe obtain the product ID for single payments?

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Stripe can obtain product ID for single payments through different ways such as:

1. Passing the product ID as a parameter in the API call: This can be done by setting the "product" parameter to the product ID when creating a PaymentIntent or Charge object.

2. Retrieving the product ID from the customer object: If the product ID is stored in the customer's information (e.g. in metadata or a custom field), Stripe can retrieve it from the customer object when processing the payment.

3. Using webhooks: Stripe can be configured to send a webhook event for each successful payment, and the webhook payload can include the product ID as metadata or in any other way.

4. Integrating with an e-commerce platform: If the payment is made through an e-commerce platform (e.g. Shopify or WooCommerce), the product ID may be automatically passed to Stripe as part of the integration.