https://github.com/magesuite/back-in-stock-pwa-notifications

Complimentary module for Magesuite_BackInStock and Magesuite_PwaNotifications module. It allows receiving push notifications in the user’s browser when a product is again in stock.

Installation

User manual

4.4.Back-In-Stock Subscriptions

Admin settings

In order to allow customers to subscribe for push notifications go to:

Stores -> Configuration -> Magesuite -> PWA -> Permissions Set Back in stock notification to Yes.

Open

Frontend

In the buybox additional button for subscribing to back-in-stock push notifications is displayed.

Open

Logged-in users can disable all back-in-stock notifications in the admin panel: