Advanced customizations

Most stores launch with Theme settings, sections, and metafields. Use this guide when you need templates, liquid-level changes, or app architecture beyond the editor.

Sales channels > Online Store > Themes > Customize (settings) · Settings > Custom data (metafields)

Metafields and metaobjects

• Product metafields power service duration, artist cards, and “Starting at” overrides.
• Define definitions in Settings → Custom data before merchants fill values.
• Theme docs for product pages list which namespaces Studio Arcana reads.

Alternate templates

• product.service.json — service-oriented PDP
• Assign templates per product in Admin → Products → theme template
• Keep one clear CTA pattern per template (cart vs booking)

When to involve a developer

• New section types or Liquid logic
• Checkout extensibility and Shopify Functions
• Headless or Hydrogen storefronts (separate from this Liquid theme)
• Complex app orchestration across Engine, Sentinel, or Reserve

Preserve upgrade safety

• Avoid editing core theme files when a setting exists.
• Document any forked snippets.
• Test on a duplicate theme before publishing.