Update scheduled email

resend.updateScheduledEmail changes a pending email’s future delivery time.

automations/reschedule-resend-email.automation.ts

import { automation } from "automate.ax"
import { resend } from "automate.ax/resend"

export default automation("Reschedule Resend email", () => {
  resend.updateScheduledEmail({
    emailId: "email_123",
    scheduledAt: "2026-08-12T16:00:00Z",
  })
})

The action requires emailId. scheduledAt must be an ISO 8601 datetime with an offset or Z. Unlike initial scheduling, this action doesn’t accept natural language. Optional second argument { account } selects the binding. Returns { id: string; object: string }. Resend rejects emails after delivery begins or after a cancellation.

Built-in triggers

Built-in actions

Runtime utilities

Integrations

Update scheduled email