How to Create a Direct Buy-Now Checkout Link for a Product

CartFlows lets you create a direct link straight to your checkout page with a specific product already added to the cart. Instead of sending customers through your shop or a landing page first, you can share one link, from an ad, an email, or social media, that takes them straight to checkout, ready to buy.

This is especially useful for:

• Running ads that go straight to checkout for a single product, skipping the shop page entirely
• Sending existing customers a one-click reorder link in an email
• Sharing a pre-filled checkout link with a coupon already applied
• Linking to checkout with a specific product variation (like a size or color) already selected

How It Works

CartFlows Checkout pages can read a few special parameters from the URL and use them to automatically add products to the cart, apply a coupon, and even pre-fill the customer’s checkout fields before they type anything.

You don’t need to build this URL by hand. CartFlows Pro includes a Checkout Link Generator that builds it for you.

Step 1: Open the Checkout Link Generator

Go to CartFlows > Store Checkout (or Funnel checkout) in your WordPress dashboard, open the settings for the checkout step, then open the Checkout Link tab.

Step 2: Configure Your Link

On this screen, you can select:

• Checkout Step — which published checkout step the link should point to
• Product — the product to pre-add to the cart, including a specific variation of a variable product (e.g. a particular size or color)
• Coupon — optionally auto-apply a WooCommerce coupon (the generator shows its discount type, amount, and expiry so you can confirm you’ve picked the right one)
• Customer Details — optionally pre-fill any billing or shipping field on that checkout step, including custom fields added via the Checkout Field Editor

Step 3: Copy and Use the Generated Link

Copy the link and use it in ad campaigns, email marketing, or social posts.

When a customer opens it, they land on checkout with the product already in the cart, any coupon applied, and any pre-filled details in place, ready to complete their order.

Building a Link Manually

Example:

https://yourstore.com/checkout-page/?wcf-add-to-cart=1234
&wcf-qty=2&coupon=SAVE10&[email protected]

This link adds product ID 1234 (quantity 2) to the cart, applies the SAVE10 coupon, and pre-fills the billing email field with [email protected].

Note: If you add a shipping_* field to the link (for example shipping_address_1), CartFlows automatically checks the “Ship to a different address” option on checkout so the pre-filled shipping fields are visible right away, instead of staying hidden behind a collapsed section.

Notes

• For variable products, select the specific variation you want in the Checkout Link Generator (or use that variation’s own product ID in wcf-add-to-cart if building the link manually), rather than the parent product ID.
• This feature requires CartFlows Pro.