Capture what Shopify won't.
Shopify's native checkout gives you name and address. Everything else — gift messages, B2B PO numbers, delivery dates, special instructions, age verification — happens here. Eight field types, conditional logic on every field, zero liquid edits.
What this category really does for you.
Every shop has fields it shouldn't have to email customers for. Gift messages, allergen notes, B2B references, delivery dates, design briefs — Shopify's native checkout doesn't capture them, so support inboxes do. Custom Fields move that capture to the moment of payment, attach the value to the order, and surface it on the packing slip. Less email, fewer mistakes, cleaner fulfilment.
Every block in Custom Fields.
Click any block to see the deep-dive — what it does, how it works, and how to wire it into your checkout.
Text Input
Single-line custom fields with optional validation — saved to the order.
See the block Custom FieldsMessage
A multi-line field for gift notes, requests or briefs — with a character counter.
See the block Custom FieldsCheckbox
One checkbox — SMS opt-in, terms, consent or gift-wrap — required or optional.
See the block Custom FieldsConditional Checkbox
Tick a box to reveal more fields — gift options, business and VAT details. No code.
See the block Custom FieldsDropdown
A single-select list — delivery slots, gift wrap, PO types — saved to the order.
See the block Custom FieldsDate Picker
A checkout calendar for delivery, events or age checks — with lead-time and blackout rules.
See the block Custom FieldsPhone Input
Auto-detects country, formats as they type, validates before pay — no fulfilment typos.
See the block Custom FieldsGift Message
A gift-note field with character count and price-hide — wired into fulfilment.
See the blockThree patterns that work.
Gifting and personalisation
Conditional Checkbox (“send as gift”) → reveals Gift Message + price-hide. The classic pattern for retail stores running Q4 gifting.
B2B and wholesale
Text Input for PO number, Dropdown for payment terms, Checkbox for VAT-exempt. All conditionally visible to tagged B2B customers.
Date-driven fulfilment
Bakeries, florists, made-to-order — Date Picker with blackout days and minimum lead time. Customer picks, you plan.
Questions before you ship.
Something else we missed? Our support team replies within a day.
Ask support-
Where do custom field values end up?
On the order as custom attributes. Visible in Shopify Admin, accessible via Order API, and printed on the packing slip if you turn that on.
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Can I make a field required only for certain carts?
Yes — pair the field with Conditional Visibility. Show + require the PO field only for tagged B2B customers, for example.
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Do custom fields work with Shopify checkout extensibility?
Yes — every field is built native to Checkout Extensibility. No theme code, no fragility around theme upgrades.
Browse the rest.
Trust & Social Proof
The customer reached checkout — they almost trust you. Trust & Social Proof blocks close the gap: badges, payment icons, live reviews, and shipping protection. The smallest investment with the largest measurable lift.
See the category 03Conversion Boosters
The pay step is the highest-intent moment in the entire funnel. Surface the right add-on, the right code, the right shipping nudge — and watch AOV move without slowing the customer down or breaking native flow.
See the category 04Information & Messaging
Reassure on shipping. Surface a customer voice. Compose any message with headings, dividers, cards, and rich text. The Information & Messaging blocks let you address last-second doubts without sending the buyer to a popup or a separate page.
See the categoryDrop Custom Fields blocks into your checkout in 15 minutes.
All 24 blocks + every platform feature, on a 3-day trial. No credit card. No developer required.