# Campaigns, emails & batches

> The model — a campaign holds emails, an email holds one dynamic URL, batches fill it. Re-runs never change the URL.

Section: Campaigns, emails & batches · HTML: https://app.multiplied.studio/docs/campaigns · Index: https://app.multiplied.studio/llms.txt

_This page is a structure-only placeholder: the Studio UI it describes is being redesigned, so step text and screenshots land with the new UI._

## The three levels

```text
Campaign  (Summer sale)
└─ Email  (Email 1 — hero)      ← one dynamic URL
   ├─ Batch 1  (first 10,000 recipients)
   └─ Batch 2  (the late sign-ups)
```

The URL belongs to the **email**. Every batch under it renders into the same address pattern, so you paste the URL once and keep adding batches: a re-run, a top-up after buying credits, next week's new subscribers.

## Status you will see

- **Ready** — accepted, rendering not started.
- **Rendered** — every row has landed.
- **Live** — the email is sending; the URL is being fetched.

Copying the URL while a batch is incomplete shows a warning: not every recipient has their GIF yet. You can still copy it; the fallback covers the gap.

## Expiry

Each batch shows an expiry date and days left. See [Retention & expiry](/docs/campaigns/retention-and-expiry).