What is the best theme extension for retrieving abandoned carts?

Shopify Apps

Topic summary

A developer is building an app to retrieve and display abandoned cart items and needs guidance on selecting the appropriate theme extension type.

Available Extension Categories:

  • Admin extensions (actions, blocks, templates)
  • Analytics (web pixels)
  • Automations (Flow actions/triggers)
  • Customer accounts
  • Point-of-Sale
  • Online store (Theme app extensions)
  • Various Function types (delivery, payment, fulfillment, discounts, cart operations)
  • Checkout and Post-purchase UI

Key Consideration:
For displaying abandoned cart data on the storefront, a Theme app extension (under Online store) would likely be most appropriate, as it allows custom UI components to be embedded in the theme. Alternatively, Checkout UI extensions could work if the display needs to occur during the checkout process.

Status: The question remains unanswered, awaiting community input on the optimal extension choice for this specific use case.

Summarized with AI on November 10. AI used: claude-sonnet-4-5-20250929.
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I’m creating an app that will retrieve abandoned carts and display the items in them. For this purpose, I need a theme extension. Which extension from the list should I select to fulfill my requirements?

Type of extension? Type to search…

Admin

Admin action
Admin block
Customer segment template
Product configuration
Subscription UI
Validation Settings - UI Extension

Analytics
Web pixel
Automations

Flow action
Flow trigger

Customer account
Customer account UI (preview for dev stores only)

Discounts and checkout
Checkout UI
Post-purchase UI
Cart and checkout validation - Function
Cart transformer - Function
Delivery customization - Function
Discount orders - Function
Discount products - Function
Discount shipping - Function
Discounts allocator — Function
Fulfillment constraints - Function
Local pickup delivery option generators — Function
Payment customization - Function
Pickup point delivery option generators — Function

Online store
Theme app extension

Point-of-Sale

POS UI