uber.onRefundRequested takes no filters. It starts when a refund is requested for one of your deliveries.
automations/review-uber-refund.automation.ts
id, deliveryId, customerId, externalId, externalStoreId, liveMode, created, and refund. In refund, totalPartnerRefund is what you owe your customer and totalUberRefund is what Uber adjusts on your invoice, both in cents. Each refundOrderItems entry has a reason such as UBER_DAMAGED_ITEM or PARTNER_MISSING_ITEMS, the partyAtFault, and the refunded items.
Requires an Uber Direct connection with a webhook signing key and a dashboard webhook that sends event.refund_request. See Connect Uber Direct.