# Setting Up Pre-Checkout Requirements

### What Pre-Checkout Does

Before a customer can check out with wine products, CrushSuite runs two compliance checks:

1. **Age verification** — Confirms the customer is 21 or older (a legal requirement for wine purchases in all U.S. states)
2. **Address validation** — Confirms the shipping address is valid and eligible for wine delivery (not a P.O. box in a restricted area, not a dry county, etc.)

These checks happen before the customer reaches Shopify's standard checkout flow. If either check fails, the customer sees a clear message explaining why they can't proceed — they are not silently blocked.

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### How to Configure

1. In your **Shopify Admin**, navigate to **Settings**.
2. Open **Checkout** settings.
3. Under the checkout customization options, scroll down to Customer information and edit 
   1. Full name → require first and last name
   2. Shipping address phone number → Required  

{% hint style="info" %}
The customer information section workds in concert with CrushSuite's app embeds (especially the Entry Pop-Up Modal). Make sure your app embeds are enabled for the full compliance flow.
{% endhint %}

<figure><img src="/files/4Bfdd2c0j6rVnCSwatWd" alt=""><figcaption></figcaption></figure>

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### What Customers Experience

From the customer's perspective, the pre-checkout flow is smooth and fast:

1. They arrive on your store and see the **entry pop-up modal** asking them to confirm they're 21+ and select their shipping state.
2. As they browse, products show as **available or unavailable** based on their selected state.
3. When they proceed to checkout, CrushSuite validates their **shipping address** against compliance rules.
4. If everything checks out, checkout proceeds normally through Shopify's native payment flow.

If a check fails, the customer sees a message like "We're unable to ship to your location" — not a cryptic error.

For more detail on the customer-facing experience, see the Storefront & Checkout section.


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