> For the complete documentation index, see [llms.txt](https://docs.roadmap.so/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.roadmap.so/loyalty-and-rewards/membership-tiers-and-referrals/send-discount-codes-for-birthdays-and-tier-promotions.md).

# Send discount codes for birthdays and tier promotions

Generate a unique discount code for a member birthday or tier promotion. Deliver it through Roadmap or a Klaviyo event.

**Discount Code Generator** creates a unique, per-customer code when a member has a birthday or reaches a new tier. Deliver it by email through Roadmap or a Klaviyo event.

It is the discount-based alternative to awarding points. Use it for percentage-off loyalty perks.

In Roadmap’s **Discounts** section, create a discount and choose **Discount Code Generator**.

#### Pick the trigger

Give the generator a **Name** for admin reference. Then choose a trigger:

* **On member birthday** — choose **On their birthday**, **First of the birthday month**, or **Days before birthday**.
* **On member promotion** — runs when a customer moves into a selected tier.

Other triggers, **When review is published** and **When specific products are purchased**, belong to the Discounts & GWP guides.

{% hint style="info" %}
Send birthday discounts before the birthday when customers need planning time. An expiry date keeps the offer urgent.
{% endhint %}

#### Configure the discount code

Set:

* **Percentage** or **fixed amount**.
* **Code prefix**. Generated codes can look like `ROADMAPA83XO123`.
* **Applies to** — all products, or selected products, variants, or collections.
* **Purchase Type** — one-time purchase or subscription.
* **Minimum spend** and **Quantity limit**.
* **Expires after** — leave blank for no expiry.
* **Customer Eligibility** — all customers or members of selected tiers. Leave the tier field blank to match all tiers.

#### Choose how the code is delivered

Under **Mail Template**, choose one option:

* **Send mail via Roadmap** — Roadmap emails the customer directly.
* **Trigger a Klaviyo event** — Roadmap fires a metric and your Klaviyo flow sends the email.

For a Klaviyo event, use a recognizable metric name. For example, `Roadmap: Birthday Discount For Tier 1`.

Roadmap creates the metric after the [Klaviyo integration setup](/reviews/integrations/klaviyo-review-integration/how-to-integrate-roadmap-with-klaviyo.md). The event properties include the generated code. Use Klaviyo’s event-property Liquid snippet in your flow email.

#### Where generated codes live

Shopify Discounts stores every generated code. Search the customer’s email in Shopify admin if they lose it.

See [Where is a customer's loyalty discount code?](/loyalty-and-rewards/troubleshooting/where-is-a-customers-loyalty-discount-code.md).

#### Tier-promotion promotions

**On member promotion** uses the same configuration. Choose the trigger and target tier, then configure the amount-off or percentage-off code.

Use it when the tier perk is a discount. Use Customer Rewards when it is a specific free product.

#### Related guides

* [Reward customers for reaching a tier](/loyalty-and-rewards/membership-tiers-and-referrals/reward-customers-for-reaching-a-tier.md)
* [Award points for birthdays](/loyalty-and-rewards/points-and-ways-to-earn/award-points-for-birthdays.md)
* [Where is a customer's loyalty discount code?](/loyalty-and-rewards/troubleshooting/where-is-a-customers-loyalty-discount-code.md)


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