Frequently asked questions
Everything about setup, channels, preorders, plans, and your data — answered plainly.
Getting started
How do I add the Notify-Me button to my store?
Restock ships as a theme app extension. In your theme editor, add the Restock “Notify Me” block to your product page template and save. The button appears automatically whenever a variant is sold out — no code required.
How do customers join a waitlist?
When a product is sold out, shoppers tap the Notify-Me button and leave their email (or phone number on plans with SMS/WhatsApp). They're subscribed to that exact variant.
How fast are restock notifications sent?
Restock listens to Shopify inventory webhooks, so new stock is detected in real time and the waitlist is notified automatically — first come, first served, or VIP-first with the Pro priority queue.
Channels & features
Which notification channels are supported?
Email on every plan including Free. SMS and web push from the Growth plan, and WhatsApp from the Pro plan.
How do preorders work?
Preorder mode (Growth+) lets you keep selling a sold-out product with a configurable ship date. On Pro you can also take deposits — partial payment up front. Preorders can auto-activate when inventory hits zero.
What are price-drop alerts?
Shoppers can watch a product and get notified automatically when you lower the price (Growth+). It turns window shoppers into buyers.
What is AI demand intelligence?
On Enterprise, Restock analyzes your waitlist signals to forecast demand, recommend restock quantities, and rank your highest-revenue restock opportunities.
Plans & billing
Is there a free plan?
Yes — Free forever with 50 subscribers and 100 email notifications per month, including the Notify-Me widget and analytics. No credit card required.
How is billing handled?
Exclusively through the Shopify Billing API. Upgrade, downgrade, or cancel anytime from the in-app Plans page.
What happens if I hit my subscriber limit?
New signups pause until you upgrade — nothing breaks and nothing is deleted. If you downgrade, subscribers over the new limit are marked expired (prioritized by score and recency), never deleted.
Data & privacy
Is customer data safe?
Subscriber data is scoped to your shop and used only to send the notifications customers asked for. Restock honors Shopify's GDPR webhooks (customer data requests, customer redaction, and shop redaction). See the privacy policy for details.
What happens when I uninstall?
Shopify sends the shop/redact webhook after uninstall and Restock erases your shop's data in line with its privacy policy.
Still have a question? Contact support — we reply fast.