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How to display Custom Fields for the customers on the Checkout using the Custom -> Content -> Form option.

Guide

1

Create a new customization

Create a new customization.Image
2

Choose the Form type

Select Form from the available content types to display custom form elements during checkout.Custom Content Card Form Focus
3

Configure display conditions

Add one or more conditions to control when the form is displayed during checkout.Form Conditional Experience Focus
4

Configure form settings

Configure the Form Settings, including:
  • Element Type (Checkbox or Text Field)
  • Label displayed to customers
  • Key used to save the value in the Shopify order Form Heading Settings Add Element Focus Image (2) Form Heading Settings Focus
5

Customize the display

Configure the Display Settings to control how the custom form fields appear during checkout.Form Display Settings Focus
6

Activate the customization

Change the Status to Active using toggle button to enable the customization.Form Toolbar Focus
7

Set the priority

Configure the Priority (0–100) to determine the execution order when multiple customizations are eligible.Form Priority Focus
8

Copy the Placement ID

Copy the generated Placement ID from clipboard icon. You’ll use this in the Shopify Checkout Editor.Form Copy Placement Id Focus
9

Preview

Preview shows , How this block looks like at CheckOut.
Form Preview Focus
10

Save the customization

Click Save to store your configuration.Form Unsaved Changes Focus
11

Open the Checkout Editor

Go to your Shopify Settings → Checkout, select your checkout profile, and click Edit.
12

Add the app block

In the Checkout Editor, click Add app block.Screenshot 2026 10 08 At 16 07 56
Make sure the app block is placed in the same checkout placement you selected in Dynamic Checkout Customizer.
13

Configure the app block

Select the Checkout – Form Elements app block, and paste the copied Placement ID.Image (4)
14

Publish your changes

Click Save in the Checkout Editor to publish the customization.Form Elements Save Disabled
Why does it matter?Sunco uses the Notifications → Form customization to collect additional customer information during checkout, helping improve its brand reputation and customer experience.