Sidekick app extensions available today
Shopify developer change
MerchantDiff detected this entry in Shopify's official developer changelog on June 17, 2026.
This Shopify update is categorized as Platform, New.
What changed
All app developers can now build Sidekick app extensions. These extensions allow your app to integrate with Sidekick, giving Sidekick the ability to access data or take action within your apps. What's available today App data: Make your app's content searchable within Sidekick. Merchants can ask questions like "Find my best-performing email subject lines," and Sidekick will display relevant campaigns from your app along with key metrics. App actions: Allow merchants to take action within your app directly from Sidekick.
Who is affected
Developers building or maintaining Shopify checkout customizations should review this change.
What action may be needed
Review whether the new capability is relevant to your app. If you plan to use it, test the affected API or workflow before adopting it in production.
Use the official Shopify entry below as the source of truth for technical implementation details, affected APIs, migration instructions and deadlines.
Want the actionable version?
MerchantDiff monitors Shopify API changes, deprecations, deadlines and ecosystem updates, then turns them into developer-focused release intelligence: what changed, who is affected and what action may be needed.
Get MerchantDiff →