# Coupon Manager block

> Coupon and promotion manager with inline redemption rule editor

Manage coupon and promo codes; each row expands inline to edit discount type, duration, redemption limits, and eligible plans. ReUI Badge, Frame; shadcn Button, Collapsible, Dialog, Select. Discount admin, promo codes, billing settings.

- Type: Pro block
- Category: [Billing](https://web.dev.reui.io/blocks/solutions/billing.md)
- Page: https://web.dev.reui.io/blocks/solutions/billing/solution-billing-9
- MCP: `get_block("solution-billing-9")`
- Built with: Avatar, Badge, Button, Collapsible, Dialog, Field, Frame, Input Group, Item, Select, Switch, Tabs, Tooltip
- Installs with a ReUI Pro or Ultimate license; setup: https://web.dev.reui.io/docs/license-setup

## Best for

Promo codes with copy to clipboard, redemptions shown against a limit, percent or fixed tabs and a create dialog that rejects duplicates

## Agent notes

- Replace `COUPONS` and `PLAN_OPTIONS` in data.tsx; the editor shown in the header comes from the fixed `EDITOR` object
- `handleSaveRules` and `handleCreate` only change local `coupons` state, and a created coupon starts as scheduled with no publish step
- `existingCodes` is checked in the browser only, so repeat the unique code check on your server

## When not to use

- Editing plan tiers, prices and entitlements rather than discount codes: use [Plan Catalog](https://web.dev.reui.io/blocks/solutions/billing/solution-billing-2.md) (`get_block("solution-billing-2")`)

## Third-party libraries

- Sonner v2: [API reference](https://sonner.emilkowal.ski/toast), [docs](https://sonner.emilkowal.ski/getting-started)

## Install

```bash
npx shadcn@latest add @reui/solution-billing-9
```

## About Billing blocks

### When to use

- A back office for billing operators: the invoice ledger, subscriptions, a dunning queue and metered usage
- Plan and discount admin: editing the plan catalog and coupon rules, or moving a subscription to a new tier
- One customer's billing account seen by staff, or an invoice built line by line and then sent

### When not to use

- A public page where visitors compare plan tiers and pick one before signing up: use the [Pricing blocks](https://web.dev.reui.io/blocks/marketing/pricing.md)
- A signed in customer's own settings page showing their plan, usage and invoices: use the [Profile blocks](https://web.dev.reui.io/blocks/application/profile.md)
- A stepped intake flow with no money in it, such as vendor onboarding or team invites: use the [Wizard blocks](https://web.dev.reui.io/blocks/application/wizard.md)

### Agent notes

- Each block sets a `min-h-svh` wrapper with `bg-background`, padding and a max width in page.tsx or its root component; drop it inside an app shell
- No block calls an API: sends, retries, saves and exports update `useState` or fire a sonner `toast`; post to your billing backend from those handlers

Every ReUI item has a twin like this one; the index is https://web.dev.reui.io/llms.txt. Agents with the ReUI MCP (https://web.dev.reui.io/docs/mcp) get the same guidance from the getters named above.