Shopify Plus checkout customizations
Custom fields, offers and rules right in the Shopify checkout. We build them with Checkout UI extensions and Shopify Functions, the official way Shopify supports.
Store examples
Four checkouts we customized. Each one solves a different problem.
Business purchases with a VIES check
The customer enters a company number and VAT ID right in the checkout. We check the number in the VIES register straight away.
A business from another EU country then pays the price without VAT.

A checkout for made-to-measure saddles
The checkout recognizes business customers and offers the impression kit that the Joyseat saddle is made from.
New padding can only be ordered by someone who already owns the saddle.

Recommended products and order checks
The order summary offers products based on what is in the cart. They are added in one click.
A function also stops the same Synlab lab test from being ordered twice.
The final amount including the COD fee
When the customer picks cash on delivery, a checkout block shows the final amount with the fee right away.
Nobody gets a surprise at the door.
What we build into the checkout
A selection of what already runs in our clients' stores.
Cart validation
The checkout stops orders that make no sense. Like the same test twice at Verra, or padding without a saddle at Posedla.
Checkout upsell
Products offered based on the cart. The customer adds them in one click, without going back to the store.
Free gift
When a customer qualifies for a gift but it is not in the cart, Facederma offers it right before the Pay button.
Phone required for pickup
For store pickup, Facederma requires a phone number and checks its format. The store can always reach the customer.
Rule-based discounts and prices
Third item at half price at Posedla, gift prices based on cart value at Facederma. Business customers can have their own rules.
Terms and consents
Checkboxes for terms of service, the refund policy or opting out of the Heureka survey, right above the Pay button.
Ready-made checkout apps
When a ready-made solution is enough, you can set it up in minutes, with no development.

Payment and shipping rules, a cash on delivery fee and a payment QR code on the thank-you page.
Try Payflow
Carriers and pickup points right in the checkout, cash on delivery rounded to a whole number.
Try Globe
Frequently Asked Questions
Do I need Shopify Plus?
What is the difference between a Checkout UI extension and a Shopify Function?
Will the customization survive Shopify updates?
Can I change the checkout blocks myself?
Got a problem no app solves?
Tell us about it. We'll say whether it takes a setting, an app or custom development.