whatsapp.onMessageSent handles WhatsApp’s sent status.
automations/track-whatsapp-sends.automation.ts
account defaults to the project’s WhatsApp binding. Trigger data has status: "sent" and includes message and recipient IDs, timestamp, callback data, conversation, pricing, structured errors, and the providerEvent described by the broad status trigger.
A sent event confirms provider acceptance, not delivery to the recipient’s device. Use whatsapp.onMessageDelivered for that outcome.