--- title: "Register back in stock signups on Shopify POS" description: "Add STOQ's tile to Shopify POS so staff can sign up in-store customers for a back in stock alert." url: https://help.stoqapp.com/back-in-stock/back-in-stock-on-shopify-pos/ product: "Back in Stock" section: "Integrations / Shopify and developers" last_updated: 2026-09-28 --- # Register back in stock signups on Shopify POS > Add STOQ's tile to Shopify POS so staff can sign up in-store customers for a back in stock alert. Use this guide to add STOQ's tile to your Shopify POS devices so staff can register a customer for a back in stock alert at the counter, for a product that isn't available to buy today. By the end, a customer signed up in person gets notified automatically, by email or SMS, the same way an online "Notify me" signup does. ## Before you begin | Requirement | Detail | |---|---| | Shopify POS app | Installed on the device, from [apps.shopify.com/shopify-pos](https://apps.shopify.com/shopify-pos) | | STOQ installed | Restock Rocket (STOQ) must be installed on your Shopify store | | A channel turned on | At least **Email alerts** or **SMS alerts** must be turned on in Back in stock alerts, or the registration won't save. See [Turn on email and SMS channels](https://help.stoqapp.com/back-in-stock/back-in-stock-channels/) | ## What customers will see A POS signup behaves exactly like an online "Notify me" signup once it's saved: | Situation | What happens | |---|---| | Product restocks | The customer is notified automatically through your Back in stock alerts delivery settings, the same as anyone who signed up on your storefront | | Notification link | The alert links to the product on your Online Store, since that's where the customer completes the purchase, not at POS | | Double opt-in enabled | If **Double opt-in** is on for email signups, the customer receives the same confirmation email as an online signup and must confirm before they're notified. See [Require double opt-in](https://help.stoqapp.com/back-in-stock/notify-me-double-opt-in/) | | SMS-only signup | SMS signups don't go through a confirmation step; they're confirmed automatically | ## Set it up ### Add the tile to your POS device You can also find the Shopify POS setup instructions inside STOQ: click **Back in stock alerts** in the left menu, click the **Settings** tab, open the **Integrations** sub-tab, click **See integrations** to open the full **Integrations** page, and open the **Shopify POS** card. 1. **Open the STOQ section in the POS app** 1. On your POS device, open the Shopify POS app. 2. Tap **Apps** (or the tile grid icon). 3. Find the **STOQ** section. [Image: The Add tile smart grid and the STOQ POS UI extensions in Shopify POS](https://help.stoqapp.com/images/general/POS.png) 2. **Add the 'Register for back in stock alert' tile** Locate and add the tile named **Register for back in stock alert**. The navigation path shown in STOQ is **App > STOQ > Register for back in stock alert**. 3. **Confirm the tile is on the POS home screen** The tile should now appear on your POS home screen or tile grid, ready for staff to use. ### Register a customer at the counter 1. **Tap the tile** On the POS home screen, tap **Register for back in stock alert**. A **Select a product** screen opens with a search bar. 2. **Search for and select the product** Type the product name in **Search products**, then tap it. Results appear once you pause typing. 3. **Select the variant** On the **Select variant** screen, tap the specific variant the customer wants to be notified about. If you picked the wrong product, tap **Choose a different product** at the bottom of the screen. Products without options such as size or color skip this screen and open the **Register customer** screen directly. 4. **Fill in customer details** This opens the **Register customer** screen. Fill in: 1. **Name**, if you've turned on **Collect customer's name** in your signup form settings (requires a paid plan). See [Collect the customer name at signup](https://help.stoqapp.com/back-in-stock/notify-me-customer-name/). 2. **Email**, the customer's email address. 3. **Phone no**, in international format starting with `+`, for example `+1 123 456 7890`. 4. **Quantity**, using the stepper, the number of units the customer needs (defaults to 1). 5. **Market**, if your store is set to **Multiple markets** and has more than one configured, select the market the request belongs to. See [Filter alerts by location or market](https://help.stoqapp.com/back-in-stock/back-in-stock-locations-and-markets/). 6. **Marketing consent**, turn on the **Customer consents** switch if the customer agrees to receive promotional content. A **Consent received** badge appears beside it. At least an email or a phone number is required before you can save. If you enter both, and both **Email alerts** and **SMS alerts** are turned on, the customer is registered for alerts on both channels. 5. **(Optional) Add more products for the same customer** Tap **Add product** below the **Products** list to search for another product before saving, so one customer can be registered for several products in a single visit without re-entering their details. To take a product off the list, tap it, then tap **Remove product**. 6. **Tap Save** Tap **Save**. STOQ shows a **Request saved** toast, then the **Done** screen confirms **Registration saved**. [Image: Selecting a product, the Register customer form, and the Registration saved screen in POS](https://help.stoqapp.com/images/general/POS2.png) 7. **Add another customer or close** On the **Done** screen, tap **New customer** at the top to register a different customer, starting back at product search, or tap **Close** to close the tile. ## Check your setup Register a test signup using your own email or phone number, then check the **Products** tab in **Back in stock alerts** and confirm the product's signup count went up. For a full walkthrough that also confirms the notification actually sends, see [Test Back in Stock alerts](https://help.stoqapp.com/back-in-stock/test-back-in-stock-alerts/). ## Troubleshooting ### Save stays disabled A product must be selected, and either the email or phone field must be filled with a validly formatted value: email needs an `@` and a domain, phone must start with `+` and include a country code. ### The Done screen says Registration failed None of the products were saved. The usual causes: 1. The channel the customer used, **Email alerts** or **SMS alerts**, is turned off for your store. Turn it on (see [Turn on email and SMS channels](https://help.stoqapp.com/back-in-stock/back-in-stock-channels/)), then tap **New customer** and register the customer again. 2. The customer is already signed up for that product with the same contact details. Their existing signup still stands, so there's nothing to fix. ### Search results don't appear while typing Results appear once you stop typing for a moment. The list shows up to 20 products, so if the one you want isn't there, type more of its name. If the line under **Search products** says **Could not search products**, change the search text to try again, or close the tile and open it again. ### The Name field doesn't appear on the form It only shows when **Collect customer's name** is turned on, which requires a paid plan. See [Collect the customer name at signup](https://help.stoqapp.com/back-in-stock/notify-me-customer-name/). ### The Market field doesn't appear It only shows when your store's **Market setup** is set to **Multiple markets** and you have more than one market configured. See [Filter alerts by location or market](https://help.stoqapp.com/back-in-stock/back-in-stock-locations-and-markets/). ### A customer registered at POS never gets a confirmation email Check whether **Double opt-in** is turned on for email signups; the customer needs to click the confirmation link before alerts go out. See [Require double opt-in](https://help.stoqapp.com/back-in-stock/notify-me-double-opt-in/). ## Limitations The product search on the tile isn't limited to out-of-stock items: staff can search for and register a customer on any product or variant in your catalog, whether or not it's currently in stock. ## FAQ ### Where do I find the STOQ tile in the POS app? In the Shopify POS app, tap **Apps** (or the tile grid icon), then find the **STOQ** section and add the **Register for back in stock alert** tile to your home screen. ### Do I need to set anything up in STOQ besides adding the tile? No. A POS registration uses the same Back in stock alerts settings as your online signup form: whichever channels, name field, market setup, and double opt-in rules you've already configured apply to POS signups too. ### Can I register the same customer for more than one product in one visit? Yes. Tap **Add product** on the **Register customer** screen to search for additional products before tapping **Save**; all selected products are registered for that customer in one submission. ### What if I pick the wrong product? On the **Select variant** screen, tap **Choose a different product** to go back to search. If the product is already on the **Register customer** screen, tap it in the **Products** list, then tap **Remove product**. ### Will a customer notified about a restock need to come back to the store to buy it? No. The alert links to the product on your Online Store, so the customer completes the purchase there. The POS registration only captures their intent to be notified. ### Can staff register a customer for a product that's currently in stock? Yes, the tile's product search isn't restricted to out-of-stock items, so it's possible to register one by mistake. The customer will still only be notified according to your Back in stock alerts delivery settings. ## Related guides - [Set up alerts](https://help.stoqapp.com/back-in-stock/set-up-back-in-stock-alerts/): Turn on the "Notify me" widget and configure delivery channels. - [Turn on email and SMS channels](https://help.stoqapp.com/back-in-stock/back-in-stock-channels/): Choose which channels customers can sign up and be notified with. - [Collect the customer name at signup](https://help.stoqapp.com/back-in-stock/notify-me-customer-name/): Add a name field to the signup form, online and on POS. - [Filter alerts by location or market](https://help.stoqapp.com/back-in-stock/back-in-stock-locations-and-markets/): Set up Multiple markets so the POS Market field appears. - [Preorders on Shopify POS](https://help.stoqapp.com/preorders/preorders-on-shopify-pos/): Use STOQ's other POS tile to take a preorder at the register.