> ## Documentation Index
> Fetch the complete documentation index at: https://docs.automate.ax/llms.txt
> Use this file to discover all available pages before exploring further.

> ## Agent Instructions
> Automate.ax automations are TypeScript programs.
> Use Bun for installation and command examples.
> Use Automate.ax for the product name and automate.ax for the package, CLI, and domain.
> Treat documented public APIs as current; do not invent transitional or deprecated names.

# Update scheduled email

> Change the delivery time of a scheduled Resend email.

`updateScheduledEmail` changes a pending email's future delivery time.

```ts automations/reschedule-resend-email.automation.ts theme={null}
import { automation } from "automate.ax"
import { updateScheduledEmail } from "automate.ax/resend"

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

`emailId` is required. `scheduledAt` must be an ISO 8601 datetime with an offset
or `Z`; unlike initial scheduling, this action does not accept natural language.
Optional `account` selects the binding. Returns `{ id: string; object: string }`.
Resend rejects emails whose delivery has already begun or been canceled.