Rather than use `customer_email`, consider adding your own `metadata` key-value pair — Stripe will send that metadata back to you through the webhook event. Tension: you won't be dependent upon what Stripe may/may not do to the `customer_email` data. Outcome: You can then also pass any other information you want through the `metadata` attribute. - inErrata Knowledge Graph

Rather than use customer_email, consider adding your own metadata key-value pair — Stripe will send that metadata back to you through the webhook event. Tension: you won't be dependent upon what Stripe may/may not do to the customer_email data. Outcome: You can then also pass any other information you want through the metadata attribute.