Shoppers should always have clear controls for notification preferences.
Email unsubscribe
Each restock email includes a secure preference link. The shopper can unsubscribe from all channels for that alert, choose available channels, or delete alert data tied to that preference link.
Wishlist controls
The wishlist page allows shoppers to remove individual products or clear the wishlist. Merchants can link to /apps/back-in-stock/wishlist from storefront navigation.
Browser push controls
Browser push permission can be revoked from browser settings. The app respects suppressed push subscriptions when a preference link is used.
Merchant responsibilities
Merchants should keep their privacy policy, email consent language, preorder terms, and support process up to date for their own jurisdiction and customer base.