Troubleshooting

The block shows its heading but no options

The block couldn't reach the configuration endpoint. Almost always the app proxy path: if another app owned /apps/cartrella when Cartrella was installed, Shopify assigned a suffixed path (e.g. /apps/cartrella-1). Set it in the block's App proxy path setting, save, and reload.

Two Cartrella blocks appear in the theme editor

You have more than one Cartrella app installed (e.g. a development install). Uninstall the one you don't use so only one set of blocks appears.

The pack price didn't change after an edit

Editing a live pack republishes automatically; give it a few seconds and hard-refresh. If the pack is a draft, publish it — drafts never touch the storefront.

Checkout shows the pack, not the components

The expansion runs inside Shopify checkout. If it isn't applying:

• the pack must be Live in Cartrella (not draft),
• the store must have completed the latest app update (reopen the Cartrella admin — it re-syncs on load actions),
• development preview links (*.shopifypreview.com) disable checkout entirely; test on the real store domain.

A component sold out but the pack is still buyable

Cartrella takes packs off the storefront automatically when a component sells out (and restores them on restock) — this runs off Shopify's product-update events, so allow a few seconds. If a pack stays visible: adopted products are never auto-hidden (that's yours to manage), and components with "Continue selling when out of stock" enabled count as available on purpose.