Fired when a new subscription phase is created. Doc-only for parsing.
Webhook payload
subscription.created, subscription.draft.created, subscription.activated, subscription.updated, subscription.paused, subscription.cancelled, subscription.resumed, subscription.phase.created, subscription.phase.updated, subscription.phase.deleted, feature.created, feature.updated, feature.deleted, feature.wallet_balance.alert, entitlement.created, entitlement.updated, entitlement.deleted, wallet.created, wallet.updated, wallet.terminated, wallet.transaction.created, payment.created, payment.updated, payment.failed, payment.success, payment.pending, customer.created, customer.updated, customer.deleted, invoice.update.finalized, invoice.update.payment, invoice.update.voided, invoice.update, invoice.payment.overdue, wallet.credit_balance.dropped, wallet.credit_balance.recovered, wallet.ongoing_balance.dropped, wallet.ongoing_balance.recovered, subscription.renewal.due, invoice.communication.triggered, credit_note.created, credit_note.updated