Wishlist Plus enables your shoppers to save favorites and return to them later. Comes with powerful APIs to customize wishlists and integrates with leading email services to send price drop and restock alerts. Helps shoppers organize products into multiple wishlists and share them via emails, SMS, and socials. Supports anonymous wishlists. Comes with detailed reports on shopper behavior. Includes a new Customer Accounts extension for easy tracking of all wishlists and browsing activity.

Go beyond the basics with the Klaviyo marketing app. New stores get a guided setup — sign-up form, welcome email, and abandoned-checkout flow — without leaving Shopify Admin. Unify data from 350+ integrations and boost marketing performance with campaigns, smart segmentation, and automated workflows from Klaviyo’s AI Agents. Over 117k brands use Klaviyo and Shopify to grow faster with personalized emails, SMS, WhatsApp messages, and marketing automation tools that turn browsers into buyers.

Rebuy personalizes every step of the shopping journey with AI-powered upsells, cross-sells, and smart product discovery and merchandising tools. Our core packages — Cart & Merchandising, Checkout & Post Purchase, Search & Collections, and Flows & A/B Testing — help brands boost AOV and LTV. Plus, Rebuy Monetize unlocks new, incremental post-purchase profit! Convert more and grow faster with flexible no-code, low-code, and custom code solutions trusted by top Shopify stores.

Add a "Notify me" button in minutes to enable automatic back in stock email or SMS alerts when you restock. Maximize sales by capturing demand before you have inventory with the preorder feature. Show AI powered in-stock recommendations for out of stock products. Customize to match your site’s theme. Automate back in stock and restock alerts via your ESP or SMS platform. Advanced inventory control capabilities like batch alert send, coming soon alerts and analytics to track popular products.