AMP Promo Codes & Coupons August 2026

AMP's bundle discounts and Shopify promo codes can work together, but whether they stack depends on how Bundles by AMP is configured and what other Shopify discounts are active. When a bundle discount disappears after you add a coupon code, it is usually due to combination settings or a conflict with another discount rule.

AMP's troubleshooting guidance notes that bundle discounts often fail to show at checkout when discount configurations limit how bundles combine with other product, order, or shipping discounts. In Settings under Discount configurations, merchants can choose which discount types are allowed to combine with bundle discounts. If a type is not allowed, the bundle savings may drop off as soon as a standard Shopify discount becomes active.

Another common pattern is that Shopify automatic promotions or native offers override AMP bundle discounts. AMP's help docs describe scenarios where automatic Shopify deals, free gift offers, or other sitewide promotions cause the bundle discount to be replaced at checkout. When the bundle line reverts to full price after you enter a promo code, testing the same cart with different active discounts and reviewing both Shopify Discounts and AMP's combination settings is the most reliable way to identify which rule is removing the bundle savings.

AMP focuses on bundle-based savings inside Shopify rather than issuing its own shopper-facing promo codes, so most AMP discounts are bundle offers that sit alongside standard Shopify discount codes, automatic discounts, and free shipping deals. Cart eligibility depends on how each bundle campaign and Shopify discount is configured for products, orders, and shipping.

Bundles by AMP supports several discount structures that merchants can attach to products: classic bundles, volume discount bundles, buy X get Y offers, and free or discounted add-ons. These bundle discounts apply when the shopper adds the qualifying product mix, often through the AMP bundle widget, and can be allowed or blocked from combining with product-level, order-level, or shipping discounts in AMP's Discount configurations settings.

Shopify discount codes and automatic deals remain the main promo tools for shoppers, and AMP's docs explain that some native Shopify offers can override bundle discounts when both apply to the same cart. To see whether a cart qualifies before checkout, the merchant typically surfaces the AMP bundle widget on the relevant product or cart pages, while Shopify's own discount settings control which products, collections, and order conditions a standard promo code or automatic discount must match for the discount to trigger.

Stacking AMP-powered bundle discounts with other savings is possible, but it depends on how Bundles by AMP and Shopify discount combinations are configured. AMP's help docs state that merchants can choose to allow bundle discounts to combine with product discounts, order discounts, and shipping discounts in the app's settings, which controls whether stacking works for a given cart.

In Bundles by AMP, the Settings area includes Discount configurations where merchants can check options to allow combining bundle discounts with different discount types. If bundle discounts are not allowed to combine with, for example, order-level codes or free shipping discounts, shoppers will see the bundle savings disappear when those other discounts become active at checkout. This behavior is consistent with Shopify's own discount combination rules, which define which product, order, and shipping discounts are permitted to apply together.

AMP's troubleshooting guidance also notes that overlapping automatic Shopify promotions can prevent bundle discounts from applying. For shoppers, this means that stacking a bundle price with an automatic sitewide promotion or free gift offer may not be possible when the merchant's Shopify discounts are configured to take priority. The most reliable way to enable stacking is for the merchant to explicitly allow bundle discounts to combine with the relevant discount classes in AMP, then test typical carts where bundle pricing, promo codes, and free shipping would all be expected to apply.

The most common reasons AMP bundle discounts fail to apply are configuration limits in Bundles by AMP, conflicts with Shopify's own discounts, and how customers add items to the cart. AMP's troubleshooting documentation highlights misaligned discount combination settings, overlapping Shopify promotions, and widget-dependent behavior as the primary causes when bundle savings do not appear at checkout.

AMP's guide on bundle discounts not applying at checkout explains that some campaigns are set to apply only when items are added via the bundle widget, so manually adding the same products through standard product pages can result in a cart that looks correct but never triggers the bundle discount. The same article points to Discount configurations and the "Allow combining bundle discounts with" options as critical: if combining with product, order, or shipping discounts is disabled, any active Shopify discount of that type can block the AMP bundle discount.

To troubleshoot systematically, work through these checks:

1. Review the bundle's discount combination options in the Bundles by AMP Settings.
2. Inspect active discounts in Shopify Admin to identify overlaps or automatic offers that might override bundles.
3. Test the checkout flow in an unpublished theme or draft order to isolate which discount applies.

For merchants and shoppers working together, starting with how the cart was built (bundle widget versus regular add to cart) and then stepping through active Shopify discounts and AMP combination rules usually surfaces the specific rule that is preventing the bundle or promo savings from appearing.