How the product works, without the marketing layer.

Open the Bundles view and click Create bundle. The builder then walks through four steps: choose a bundle type, select products, configure discount and style, then review and publish.

The wizard starts from a real template, so merchants are not filling in an empty form for each offer.

The current app surface includes Bundles, Analytics, Metrics, Translations, Plans, and Help.

Setup, performance review, localization, plan changes, and help content all live inside the same product.

After publishing a bundle, merchants add the Nereus Upsell block in the Shopify theme editor. The theme extension then renders the storefront widget for matching products.

The live offer data is delivered through the theme extension and the /apps/upsell proxy path.

Quantity Breaks are same-product tiered offers such as buy 2 for 10% off or buy 5 for 20% off. They work best for replenishable or repeat-purchase products where buying more of the same item is natural.

Use Buy X Get Y for classic BOGO-style promotions or pairings where the reward quantity is tied to the qualifying purchase. The cart payload and checkout discount should mirror the same tier.

Mix & Match lets shoppers combine different products to reach a qualifying quantity and unlock a shared discount. It is a better fit than fixed sets when you want the customer to choose the combination.

Product Sets are fixed bundles sold together with one bundled discount. Complete the Bundle is better when the shopper already has part of the set and you want to add the missing items with a strong completion CTA.

• Progressive Gifts: unlock free gift lines as the shopper reaches the configured threshold.
• Smart Cart: show cart-aware upsells after intent is clear.
• Subscribe & Save: attach real selling plans to recurring offers.
• Cart Rewards: run spend-threshold rewards inside the same app surface.

Published offers are hydrated for the storefront widget through the app proxy and theme extension. The widget uses the live offer payload, not a separate hard-coded theme config.

The goal is a single offer definition that drives the builder preview, storefront widget, cart payload, and checkout result. That keeps the customer-facing savings logic tied to the same configuration merchants set in admin.

Merchants can control bundle titles, discount names, markets, styling, sticky bars, countdowns, variant selectors, and related storefront presentation from the embedded app.

• Confirm the bundle is published and not still a draft.
• Confirm the theme block is installed on the relevant template.
• Check that the targeted products are in stock and within schedule.
• Review product, collection, or market targeting for mismatches.

First confirm the offer is active and the shopper is qualifying the expected tier. Then review the synced discount state in Shopify and the app metrics surface for runtime or configuration issues.

The app checks inventory status. If the required products are unavailable, the bundle can be suppressed or flagged until inventory is restored or the offer is edited.

Plans are tied to monthly bundle revenue bands. Merchants manage plan changes from the Plans view in Shopify admin rather than through a separate billing portal.

• Starter: $14.99/month, up to $1K bundle revenue
• Growth: $29.99/month, up to $10K bundle revenue
• Pro: $79.99/month, up to $50K bundle revenue
• Enterprise: $299/month, unlimited bundle revenue

Use the product page for the overview, this FAQ for how the features work, and the demos page for real builder-to-checkout flows.