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最新のeコマース割引情報(2026年5月更新)

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eCommerce discount updates 2026 are not just about new buttons in your Shopify admin. The platform’s discount infrastructure has changed significantly over the past twelve months, and stores still running the same flat public coupon code for every customer are quietly losing ground to merchants who have moved to automatic, targeted, and customer-specific discount logic. According to Shopify’s own changelog, customer eligibility for automatic discounts was confirmed on August 6, 2025. Merchants can now target all customers, selected segments, or individual buyers with automatic offers, without requiring a code at checkout.

The challenge is that these updates do not arrive in one tidy place. Discount codes still exist. Automatic discounts are becoming more capable. B2B catalog pricing interacts with discount rules in ways that catch even experienced merchants off guard. And there is a hard technical deadline every Shopify Plus merchant using custom discount logic through Shopify Scripts must act on before June 30, 2026. This article pulls every significant update into one place so you can review, test, and update your discount setup before your next campaign.

まとめ
  • Shopify discounts in 2026 are becoming more automatic, targeted, and customer-specific.
  • Automatic discounts now support customer eligibility, segments, and individual buyer targeting.
  • Shopify Scripts will stop working on June 30, 2026, so Plus merchants must migrate to Functions.
  • B2B catalog pricing, discount codes, and automatic discounts need careful checkout testing.
  • Merchants should audit active discount rules before every major campaign to avoid conflicts.

Summary of the Latest Discount Updates

Update AreaWhat ChangedWhat Merchants Should Check
Customer eligibility for automatic discountsAdded August 6, 2025. Target all customers, segments, or individualsTest who triggers automatic offers before every launch
Shopify Winter ’26 automatic discountsVIP and segment-based offers apply automatically at checkoutTest with real customer accounts before going live
Discount code rejection via FunctionsAdded December 17, 2025. Apps can reject codes with a custom messageConfirm app rejection logic is correctly configured
Enhanced Functions Cart discount supportAdded March 2, 2026. Cart, line, and delivery discount data now availableConfirm discount app compatibility with API 2026-04
Shopify Scripts sunsetJune 30, 2026. All Scripts stop executing entirelyMigrate to Shopify Functions immediately if not done
B2B discounts and catalog pricingCatalog pricing and discount rules can be used together, but need testingTest with a real company account and full checkout flow
Market-based discount eligibilityDiscounts can be assigned to specific markets and regionsTest international storefronts before publishing any campaign

Why Do eCommerce Discount Updates 2026 Matter So Much Right Now?

The biggest shift is one of complexity and control. Merchants now have more discount tools available than ever before, but those tools interact with each other in ways that require deliberate planning before every campaign.

Shopify discount changes 2026 are not only about what is new. They are about what breaks when a merchant launches a campaign without reviewing how their existing discount setup behaves under the new platform logic. A store running a standard public code alongside newly configured automatic discount eligibility can accidentally trigger both at once, or neither, depending on which combination of settings is active.

によると Shopify’s developer changelog, multiple discount-related updates have shipped across 2025 and early 2026. Merchants with more complex discount setups should treat discounting like a campaign checklist, reviewing every active rule before each launch.

What Did the Shopify Winter ’26 Edition Change for Discounts?

Shopify Winter ’26 Edition placed stronger emphasis on automatic discounts for eligible customers. Merchants can now reward VIP segments, loyalty groups, and individual buyers automatically at checkout, with no coupon code required from the buyer.

This is a meaningful improvement. But it also means that merchants running broad automatic discounts need to check exactly who qualifies. If an automatic discount applies more widely than intended, it affects the margin without any visible warning during a campaign.

Shopify Winter ’26 Edition discount updates did not remove discount codes. They made automatic eligibility logic more capable, so both tools now need to coexist intentionally in every store’s setup.

How Are Automatic Discounts Different in 2026?

Automatic discounts Shopify 2026 work by matching a customer’s cart or profile against conditions the merchant defines. When those conditions are met, the offer applies with zero action required from the buyer. No code. No friction at checkout.

This is especially useful for B2B volume pricing, cart value thresholds, loyalty segment rewards, free gift triggers, and seasonal offers for returning buyers. A wholesale account that qualifies for 15% off orders above 20 units does not need to request the discount or remember a code. It applies when the cart conditions match.

Automatic discounts Shopify 2026 also reduce the risk of code sharing and public code misuse during high-traffic sales events, which is a real problem for stores running broad coupon campaigns.

What Is the Shopify Scripts Sunset and Why Does It Matter?

This is the most urgent eCommerce discount update 2026 for Shopify Plus merchants. According to Shopify’s official developer changelog, all Shopify Scripts will stop executing entirely on June 30, 2026. As of April 15, 2026, editing or publishing new Scripts is already no longer possible.

If your store uses Scripts for custom discount logic, wholesale pricing rules, cart-level promotions, or shipping calculations, that logic disappears on July 1 with no grace period and no fallback. There is no way to fix a broken Script after April 15, because the Script Editor is already locked.

Shopify’s migration documentation recommends moving to Shopify Functions, which handles the same logic in a more stable and native way. If you have not started this migration, it needs to happen before the end of June.

What Changed in Shopify Functions for Discount Logic?

Two significant Shopify Function updates landed in late 2025 and early 2026 that every merchant using a discount app should know about.

On December 17, 2025, Shopify added discount code rejection support to the Discount Function API. Apps can now conditionally reject a discount code with a custom checkout message. This matters for merchants who want to prevent double discounting on sale items, block codes from applying to specific products, or manage fine-grained discount combinations more precisely.

On March 2, 2026, Shopify released enhanced discount support in the Functions Cart as part of GraphQL API version 2026-04. Functions can now access detailed discount data at the cart level, the line item level, and the delivery group level. If you use a discount app, confirm it is compatible with the 2026-04 API version before your next campaign launches.

What Should B2B Merchants Know About Discount Setup in 2026?

Shopify B2B discount setup in 2026 often involves catalog pricing, automatic discounts, and discount codes working together. According to Shopify’s B2B discount documentation, B2B merchants can use catalog pricing and also create automatic discounts or discount codes on top of it.

The setup question is whether those layers interact predictably for every buyer type. In some configurations, a catalog price list takes priority over an automatic discount, and the offer never fires for the wholesale buyer at checkout. This is not a bug. It is a setup interaction that only becomes visible when you test with a real account.

B2B discount setup in 2026 should always be tested using a real company account, a real customer profile, a real cart, and a complete checkout flow before any wholesale campaign goes live.

How Does Discount Stacking Work in 2026?

によると Shopify’s discount combination documentation, product discounts, order discounts, and shipping discounts can combine, but only when the merchant’s combination settings explicitly allow it.

How Shopify discount stacking works in 2026 depends on three things. First, the type of each discount. Second, whether combination settings are turned on for each one. Third, whether any apps are adding their own discount logic on top of native Shopify discounts.

If you have never reviewed your combination settings, you may be accidentally blocking discounts from stacking even when your campaign intends for them to combine. Map out every active discount before each launch. Write down the type, the eligibility conditions, and whether combinations are enabled. Then test with a real cart before going public.

What Discount Strategies Are Working in 2026?

eCommerce pricing strategy updates 2026 show a clear pattern. Merchants running more targeted discount setups are reporting better margin retention than those using broad public codes, because targeted offers go only to buyers who meet the defined conditions.

Take Maya, who runs a skincare Shopify store selling to both retail and wholesale buyers. In 2024, she ran a single public code during her quarterly clearance. In 2026, she runs automatic discounts for her B2B accounts (15% off on orders above 20 units), a tiered offer for retail buyers (10% off at $75 spend, 15% off at $150 spend), and a free gift trigger for buyers placing their third order. Three separate discount rules. No public codes at all.

eCommerce pricing strategy updates 2026 are especially relevant for stores that sell both retail and wholesale from the same Shopify backend, because a flat public code can accidentally apply to both buyer types at the same time.

Stores using spend-based or quantity-based offers may also benefit from understanding how a tiered discount strategy works before setting up campaign rules. In addition to this, a good 段階割引アプリ can help set up these offers in just a few minutes.

ecommerce discount updates - tiered discount app

New ecommerce promotion trends 2026 include automatic discounts tied to customer behavior, personalized B2B offers by company account, cart progress bars toward a free gift, volume pricing that adjusts in real time, and event-based promotions with defined automatic start and end dates.

What stands out most about new eCommerce promotion trends 2026 is the shift away from broadcast offers. The 2024 model was “everyone gets 10% off this weekend.” The 2026 model is “this specific buyer segment gets this specific offer when these exact conditions are met in their cart.”

That shift requires accurate setup, campaign testing, and tooling that can handle multiple discount rules without conflicts.

Quick Pre-Campaign Checklist

Before any major campaign launch, run through these steps.

  • Review all currently active discount codes and remove any that are no longer needed.
  • Check automatic discount eligibility settings and confirm who qualifies.
  • Test every B2B catalog interaction using a real company account.
  • Confirm discount stacking settings are deliberately configured, not left at default.
  • Test each active discount in every market where the store sells.
  • Document which discounts are active, who each one applies to, and when each one expires.

eCommerce discount updates 2026 are not a one-time reading exercise. Merchants with complex discount setups should treat this as a quarterly audit, not a pre-launch afterthought.

まとめ

eCommerce discount updates 2026 make one thing clear. Shopify discounting has become a system with multiple interacting layers, not a single coupon code field. Every update covered in this article, from automatic eligibility to Functions Cart enhancements to the Scripts sunset, represents a specific thing to test or act on before your next campaign. Missing any one of them creates a gap that tends to show up as a lower conversion rate during a sale you expected to perform well.

Start with a discount audit before your next promotion. Document what is active, who each rule applies to, and how different discount types interact in your specific store setup. If you want to build automatic, tiered, and B2B-ready discount logic without managing every rule manually, explore what ディスカウントレイ can do for your store and see how it fits your current setup.

よくある質問

What are the latest eCommerce discount updates in 2026?

The most significant ecommerce discount updates 2026 include customer eligibility for automatic discounts (August 2025), enhanced discount logic in the Shopify Functions Cart via GraphQL API 2026-04 (March 2026), discount code rejection support through the Discount Function API (December 2025), and the Shopify Scripts sunset on June 30, 2026, which affects every Plus merchant still using Script-based discount logic.

What changed in Shopify discounts after the Winter ’26 Edition?

Shopify Winter ’26 Edition discount updates centered on automatic discounts for eligible customers. VIP segments and individual buyers can now receive automatic offers at checkout without entering a code. Discount codes were not removed. Automatic eligibility logic became more capable and more targeted.

Are Shopify discount codes being replaced by automatic discounts?

No. Discount codes remain supported. Automatic discounts are becoming more important because they reduce friction and apply without customer input. Most stores in 2026 use both, with codes for shareable campaigns and automatic discounts for segment-based or loyalty-based offers.

What is the Shopify Scripts sunset and who does it affect?

According to Shopify’s developer changelog, Scripts stop executing entirely on June 30, 2026. As of April 15, 2026, editing or publishing new Scripts is already blocked. This affects every Shopify Plus store using Scripts for custom discount logic, cart pricing, shipping rules, or wholesale pricing. Migration to Shopify Functions is mandatory before June 30.

How does market-based discount pricing work in Shopify in 2026?

Through Shopify Markets, merchants can assign automatic discounts and discount codes to specific markets, regions, or B2B contexts. A discount that works correctly in a primary market may behave differently in a secondary market with a custom price list or local currency rounding. Each market should be tested independently before a campaign launches.

Does DiscountRay support automatic discounts and B2B pricing?

Yes. DiscountRay supports automatic discounts, B2B segment offers, tiered pricing by cart value or quantity, free gift triggers, country-based rules, and customer segment targeting. It works with Shopify’s checkout without requiring any code from the merchant.

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