You can adjust the look of your form fields to fit your store’s theme using the App embed settings:
- In your Shopify admin, go to Online Store > Themes.
- Find your theme and click Customize.
- Click the App embeds tab.
- Beside Magical Custom Fields, click the expand icon.
- Update the style settings as you like. Use the theme editor’s page selector to preview a product with custom fields before you publish the changes.
- Click Save when you’re happy with how it looks.
This lets you keep your forms looking consistent with your brand and storefront.
Express checkout bypasses required fields
If you use required product page fields (personalization, terms checkbox, age verification, file upload), consider disabling dynamic checkout buttons (Apple Pay, Shop Pay, Google Pay) on products where those fields are mandatory. Customers using express checkout skip the product page entirely and go straight to checkout — they never see your required fields, so they can complete a purchase without providing the data you need. This is a platform limitation, not an app bug. In Shopify, you can disable dynamic checkout buttons per product or globally in your theme settings to ensure customers always pass through the product page and complete required fields.
Paid fields require published products
Paid fields (embroidery +$X, gift wrapping +$Y, rush fees) create hidden products behind the scenes. These products must be set to "Active" and available on your Online Store sales channel — they can be "Unlisted" so they don't appear in collections or search, but they must be published. If the paid add-on price doesn't show in the cart or the option doesn't work, this is almost always the cause. Check your Shopify admin: Products → find the generated add-on products → ensure Status is Active and the Online Store sales channel is enabled. This is the #1 setup mistake with paid fields.
Originally from our Help Center