A Shopify Wholesale and Rewards App Built on Shopify Functions

Wholesale pricing on Shopify is awkward for a reason: the price a trade customer should see depends on who they are and how much they are buying, and that decision has to happen inside Shopify's own pricing path — not in JavaScript that a shopper can see through. Rewards have the same problem from the other direction, needing to surface a per-customer balance in a storefront that is aggressively cached.

What we built

A Shopify app on Remix, with the pricing logic implemented as a Shopify Function — a discount extension compiled to WebAssembly and evaluated by Shopify itself — and the storefront surfaces implemented as theme app extensions, so a merchant adds them as blocks in the theme editor rather than by editing Liquid.

• Discount function applying per-level volume pricing for wholesale customers.
• Wholesale price preview on the product page and wholesale pricing in the cart, so the trade price is visible before checkout rather than appearing as a surprise adjustment.
• Rewards blocks — a rewards balance block, a product-page rewards block and a rewards cart block.
• Store credit block for the storefront.
• Checkout validation extension enforcing the rules at the last gate.
• Admin and POS reward redemption extensions, including a draft-order block, so staff can redeem rewards from the Shopify admin and from the point of sale rather than only online.
• Supporting content blocks — product reviews, a knowledge-base page block and an embedded form block.

The wholesale application form

Becoming a trade customer runs through a long multi-slide application form, and most of the recent work on this project has been there — the unglamorous part where a form either gets completed or gets abandoned. Fixes included date-of-birth picker validation, blocking slide advance when a phone number is rejected rather than letting the applicant discover it later, stopping browser autofill from triggering the required-field alert on fields it had just filled, unclipping help tooltips that were being cut off by their container, adding description tooltips on grouped slides, and cleaning up grouped-slide leader styling. Each fix was synchronised back into the repository as its own commit.

Status

The app carries deployed extension bundles and a manifest, and the pattern of the recent commits — individual form fixes pulled back one at a time — is the signature of work being made against a running store. The repository does not identify a merchant or record an acceptance, so we describe the build and stop there.