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Send back in stock reminder emails through Klaviyo

Route your restock reminder, sent to customers who haven't bought yet, through a Klaviyo flow.

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STOQ can send a reminder to customers who got a back in stock alert but haven’t purchased, while stock is still available. When you send alerts through Klaviyo, the reminder fires its own metric, so it needs its own Klaviyo flow separate from the first alert.

Before you begin

Section titled “Before you begin”
Requirement Detail
Reminders turned on Enable the reminder step in STOQ first. See Send reminder emails.
Klaviyo as your email provider The first alert must already send through Klaviyo. See Send back in stock alerts through Klaviyo.
A paid plan The Klaviyo integration is a paid feature.

Set it up

Section titled “Set it up”

On a phone, this menu is collapsed. In the Shopify mobile app, tap the STOQ logo at the top of the screen to open it, then choose the section named below. There is no hamburger icon. See Finding the STOQ menu.

  1. Turn on the reminder in STOQ

    1. In the left menu bar of the STOQ app, click Back in stock alerts.
    2. Click the Settings tab, then open the Notifications sub-tab.
    3. Open the reminder in the sequence and turn it on, then set how many days after the first alert it should send (1 to 3 days works well).

    STOQ app inside Shopify admin on the Back in stock alerts page, Settings tab with the Notifications sub-tab open, showing the Notifications sequence with a When you restock card set to On and a Wait 1 day card for Send reminder notification set to Off, the Send reminder notification panel reading Off with a Turn on button, and below it the Email & SMS templates section with SMS alerts, Email alerts, a Sent from restock@preorders-test-sneha.stoqapp.com field, Watermark visible, and Customize email and Customize SMS buttons; with markers: 1 on Back in stock alerts in the left menu, 2 on the Settings tab, 3 on the Notifications sub-tab, 4 on the Send reminder notification Wait 1 day card.

    STOQ app Back in stock alerts page, Settings tab, Notifications sub-tab, focused on the Send reminder notification panel which reads Off with the explanatory text that it sends 1 day after the first restock alert only if the customer still hasn’t purchased and the product is in stock, above the Email & SMS templates section; with markers: 1 on the Turn on button at the top right of the Send reminder notification panel.

    STOQ app Back in stock alerts page, Settings tab, Notifications sub-tab, with the Send reminder notification now set to On (Turn off button showing) and a Days to wait field containing the value 1 with days and a Save button, above the Email & SMS templates section; with markers: 1 on the Days to wait input field, 2 on the Save button.

  2. Route the reminder through Klaviyo

    In the reminder’s editor, click Customize email, open Send emails through in the sidebar, and choose Klaviyo.

    STOQ app Back in stock alerts page, Settings tab, Notifications sub-tab, with Send reminder notification On and Days to wait set to 1, showing the Email & SMS templates section with SMS alerts, Email alerts, the Sent from restock@preorders-test-sneha.stoqapp.com field, Watermark visible, and the Customize email and Customize SMS buttons at the bottom; with markers: 1 on the Customize email button.

    STOQ app email template editor titled Edit templates for Back In Stock - Reminder Notification 1, with the Email template tab selected, a left sidebar listing Send emails through (set to STOQ), Address (preorders-test), Content, Colors & styles, Social links Off, and a Judge.me product reviews integration On, and a right-side email preview with subject Hurry, Floral Shirt - Medium is selling out fast! and a Buy now button; with markers: 1 on the Send emails through row in the sidebar.

  3. Create the reminder flow in Klaviyo

    In your Klaviyo dashboard, create a flow triggered by the Back in stock reminder 1 (STOQ) metric, add an Email action, and design the message. If you used STOQ’s automatic setup, this flow already exists.

    STOQ app email editor Send emails through panel (reached from Customize email), headed Choose your email platform to send alerts to customers, with Email platform radio options STOQ, Klaviyo (selected), and Shopify Flow, a step 1 Connect Klaviyo section marked complete with a Disconnect button, a step 2 Create a flow section beginning, and a right-side preview reading that emails will be sent through Klaviyo and to set up your Flow, connect it to STOQ and preview the template in Klaviyo; with markers: 1 on the selected Klaviyo radio option.

  4. Verify the flow

    Back in STOQ, enter the exact flow name and click Verify flow. A green checkmark confirms it’s connected.

    STOQ app email editor Send emails through panel scrolled to the step 2 Create a flow section for Back in stock reminder 1, showing a Flow name input containing STOQ - Back in stock reminder, a Verify flow button and a Send test event link, with instructions to trigger the flow with the Back in stock reminder 1 (STOQ) event, and a right-side preview noting emails will be sent through Klaviyo; with markers: 1 on the Verify flow button.

Check your setup

Section titled “Check your setup”

Sign up for an alert, restock the product so the first alert sends, then wait for the reminder window (or use Klaviyo’s test event) and confirm the reminder arrives from the reminder flow, not the first-alert flow.

FAQ

Section titled “FAQ”
Can I send the first alert through STOQ and the reminder through Klaviyo?

The alert and reminder should use the same email provider so the sequence stays consistent. Set both to Klaviyo, or both to STOQ’s built-in email.

Can I send more than one reminder?

STOQ sends a single reminder in the sequence. For further follow-ups, add delays and extra emails inside the Klaviyo flow.

When does the reminder actually send?

Only when the customer received the first alert, hasn’t purchased, and the product is still in stock. If any of those isn’t true, the reminder is skipped.

Which variables can I use in the reminder?

The same event properties as the first alert, plus {{ event.is_reminder }}. See Personalize Klaviyo back in stock emails.

Section titled “Related guides”
Send reminder emailsTurn on and time the restock reminder.
Send back in stock alerts through KlaviyoRoute the first alert through a Klaviyo flow.
Personalize Klaviyo emails with variablesThe event properties available in your flow templates.
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