What changed: Sidekick can identify storefront improvements that are testable as theme changes and expected to affect add-to-cart behavior, build a draft version, and compare it with the current storefront using AI-simulated shoppers; recommendations are not tested on real shoppers, are not live A/B tests, and merchants review the suggestion before applying it.
Who is affected
The source does not enumerate scope; it refers to merchants using Shopify's Sidekick assistant.
What it means for your business
For businesses using Shopify Sidekick, this means theme changes expected to affect add-to-cart behavior can be previewed via AI simulation before they go live on the real storefront.
What to do
Review Sidekick's draft storefront changes and their simulation results before deciding whether to apply them.
When it takes effect
The source is dated October 28, 2026 as the changelog entry; no separate effective date is given.
Source: https://changelog.shopify.com/posts/get-ai-tested-storefront-recommendations-from-sidekick
