4 min to readLast update on 15 September 2026

Install and Embed Issues

If shoppers never see Customize It, the problem is usually install, plan, or theme settings—not the product artwork.

Custy does not appear in Apps

Open Shopify Admin → Apps and search for Custy. If it is missing, install it from the Shopify App Store on the correct store.

How to Install Custy?

Customize It does not show on the product page

Work through these checks in order:

Confirm Custy is installed on this store
Confirm your plan or trial allows the products you are testing
Open the theme editor and turn on the Custy app embed
Confirm any Custy block is present on the product template
Save the theme and preview the product again
Try a private browser window to avoid an old cached page

The button shows but Design Lab will not open

The product may not be set as customizable in Custy, or the storefront is blocked by a browser extension. Open the product in Custy and confirm setup, then retry in a private window.

How to Set Up Your First Customizable Product?

Shopify asks for permissions again

Approve the requested permissions. Custy needs access to products and related store data to sync and run the designer. Denying permissions can break install or sync.