What Replaces Stocky's Reorder Alerts? Your Options After August 2026

May 11, 2026

Disclosure: I built SimpleStock, which is one of the alert replacements covered below. Where Shopify’s native alerts or a competitor fit your store better, I’ll say so.

Stocky is going offline on August 31, 2026. A lot of the migration coverage focuses on purchase orders and supplier workflows — but many Stocky users never touched those features. If your actual Stocky workflow was “check what’s low, decide when to reorder, email your supplier,” this article is for you.

This guide covers only the alerts side of the problem: what Stocky’s reorder alerts actually did, what each replacement offers, the reorder point math you need to set thresholds properly, and how to get set up without buying a full inventory suite you don’t need.

For the broader migration question — which apps replace the full Stocky PO + supplier workflow — see the Stocky replacement guide.

TL;DR

Stocky’s reorder alerts compared to what’s available now:

Replacement	Threshold logic	Lead-time aware?	Multi-location?	Email/Slack alerts?	Price
Shopify native	Per-variant minimum	No	Yes (per location)	Email only, basic	Free
SimpleStock	Per-variant, configurable	Yes (paid plan)	Yes	Email	Free / $14.99 / $29.99/mo
Prediko	AI-driven, per product	Yes	Yes	Email	$49–$349/mo
Inventory Planner	Formula-based	Yes	Yes	Email	$299+/mo
Assisty	Configurable	Yes	Yes	Email	$19+/mo

If you only want alerts and nothing else: Shopify native is free but limited. SimpleStock is the middle ground. Prediko and Inventory Planner are overkill unless you also need forecasting or PO management.

What Did Stocky’s Reorder Alerts Actually Do?

Before deciding on a replacement, it helps to know precisely what Stocky was doing.

Stocky’s reorder alert system had four meaningful capabilities:

1. Per-product reorder points. You could set a minimum quantity threshold per product (or variant). When inventory dropped below that threshold, Stocky flagged it as needing reorder. These thresholds were stored inside Stocky, not in Shopify itself.

2. Lead-time awareness. Stocky let you record a supplier lead time per vendor. It factored that lead time into its reorder suggestions — so if your supplier takes 14 days to ship and you sell 8 units per day, Stocky knew you should reorder before you hit zero, not when you already had.

3. Multi-location tracking. Stocky aggregated stock across locations and could alert based on combined inventory, which mattered if you ran multiple warehouses or retail locations.

4. Reorder quantity suggestions. Based on sales velocity, Stocky suggested not just when to reorder but how much. This was the feature that made it more than a basic alert app.

If you used all four of these, you need a replacement that covers all four. If you mainly used the first two and did the math yourself, you have more options.

Does Shopify Have Built-In Low Stock Alerts?

Yes — but with real limitations.

Shopify Admin lets you set a “low stock” threshold per variant in the inventory settings. When stock drops below that number, Shopify can send an email notification to staff. This works and it’s free.

What it does:

Per-variant stock threshold
Email notification when inventory falls below the threshold
Works across multiple locations (you set it per location)

What it doesn’t do:

No lead-time awareness — you’re setting thresholds manually without any formula help
No sales velocity calculation — you have to figure out the reorder point math yourself
No Slack or other delivery channels — email only
No reorder quantity suggestion — just a “hey, this is low” flag
No dashboard view aggregating all low stock items — you’d need to check individual products or use a separate report

For a store with 20 SKUs and stable, predictable demand, Shopify native is probably enough. You set your thresholds once, tweak them occasionally, and the emails remind you when to call your supplier.

For a store with 100+ SKUs, seasonal variation, or multiple suppliers with different lead times, the manual threshold math becomes a recurring task that eats time.

The Reorder Point Formula (and Why It Matters)

This is the calculation underneath any good reorder alert system. Whether you use Shopify native alerts with manual thresholds, or an app that calculates it for you, this is the math.

Reorder Point = (Daily Sales Velocity × Lead Time) + Safety Stock

Four terms to define:

Daily Sales Velocity — how many units you sell per day, averaged over a meaningful window. Most apps use 30 or 90 days. For seasonal products, use the same period last year.

Lead Time — how many days from “I placed an order with my supplier” to “the stock is on my shelf and available to sell.” Include transit, customs clearance, and receiving time. If your supplier says “2 weeks,” verify whether that’s 10 business days or 14 calendar days.

Safety Stock — a buffer above the calculated minimum, absorbing demand spikes and supplier delays. A common rule of thumb: 1–2 weeks of average sales. Higher for unreliable suppliers or fast-moving seasonal SKUs.

Reorder Point — the inventory level at which you place the order. When your stock hits this number, you order. You shouldn’t hit zero before the new stock arrives.

Worked Example

You sell yoga mats. Current 30-day sales average: 8 units per day. Your supplier is in Vietnam. Lead time: 14 days (including international freight). You want 7 days of safety stock.

Reorder Point = (8 × 14) + (8 × 7)
             = 112 + 56
             = 168 units

When your inventory drops to 168 yoga mats, place your reorder. If demand holds steady and the supplier ships on time, you’ll receive new stock with roughly 7 days of buffer remaining.

If you use Shopify’s native alerts, 168 is the number you’d enter manually into the variant threshold field. If you use an app like SimpleStock or Prediko that knows your lead time and sales velocity, it calculates this for you — or at least gives you the inputs to verify the math.

How Each Replacement Handles Alerts

Shopify Admin — Free, Works, Limited

Shopify’s built-in threshold alert is best for stores that:

Have a small SKU count (under ~50)
Have stable, predictable demand
Have consistent supplier lead times
Don’t mind doing the reorder point math manually

Setup takes about 5 minutes per variant. You go into a product in Shopify Admin, select the variant, scroll to the inventory section, and enter a “low stock” quantity. Shopify sends an email when it hits.

The manual math is the real cost. If you have 200 SKUs and want to set lead-time-aware thresholds, you’re doing 200 spreadsheet calculations. That’s a legitimate half-day project, and you’ll need to redo it whenever demand patterns change.

When NOT to use Shopify native only:

SKU count over ~50 and you want the math automated
Supplier lead times vary by vendor and you want them factored in automatically
You want a centralized dashboard showing all low-stock items at once
You need Slack notifications

SimpleStock — Alerts-Focused, Lightweight

SimpleStock is the app I built specifically for the “dashboard + alerts” use case — the part of Stocky that most small stores actually used daily.

What it does for alerts:

Configurable threshold per variant, with a dashboard view that shows everything that’s low or at risk in one place
On the Growth plan ($14.99/mo): vendor lead time fields, which feed into reorder point suggestions — you enter your lead time per supplier, and the app factors it into the reorder suggestion per product
Multi-location inventory view, included in Growth
Email alerts when stock crosses a threshold

What it doesn’t do:

No Slack delivery (email only)
No AI-driven demand forecasting — reorder suggestions are formula-based, not ML-based
No purchase order creation inside the app

If Stocky’s alert workflow was the main thing you used — morning dashboard check, flag what’s low, reorder manually — SimpleStock replaces that directly at $14.99/month, or free for up to 30 SKUs.

When NOT to pick SimpleStock for alerts:

You want AI-adjusted reorder points that adapt automatically to trend shifts → Prediko is better
You need Slack or SMS delivery → neither SimpleStock nor Shopify native covers this without an additional tool
You want PO generation alongside the alert → Prediko or Inventory Planner

Prediko — Alerts + AI Forecasting

Prediko ($49–$349/month) builds reorder alerts on top of machine-learning demand forecasts. Their reorder point suggestions aren’t just formula-driven — they adjust for trend, seasonality, and demand volatility automatically.

For alerts specifically, this means:

Reorder points that adjust dynamically as sales velocity changes
Seasonal demand accounted for without manual override
Lead-time-aware suggestions built in

The tradeoff: you’re paying $49/month minimum. If you have a store with consistent demand and steady suppliers, the AI adjustment over a formula may not change your reorder behavior in practice. You’d be paying for forecast precision you don’t need.

For stores with real seasonality (beach toys, holiday gifts, fashion with trend exposure), Prediko’s dynamic alerts are meaningfully better than static formula thresholds.

Inventory Planner — Enterprise Alerts

Inventory Planner ($299+/month) includes sophisticated reorder point calculations as part of a broader demand planning platform. Their alert logic accounts for sales velocity, lead time, safety stock, and service level targets.

The honest answer: if all you need is reorder alerts, $299 is the wrong tool. Inventory Planner makes sense when you have a full inventory team, multiple warehouses, and complex replenishment decisions. The alert feature is powerful but bundled with infrastructure most small stores will never use.

Assisty — Mid-Range Alternative

Assisty (from $19/month) sits between SimpleStock and Prediko. Their reorder alerts include lead-time awareness and some demand-based adjustment. It’s worth a trial if you find SimpleStock’s formula approach too manual but Prediko’s price too steep.

How to Set Up Reorder Alerts After Stocky

Option A: Shopify Native (No New App)

Export your Stocky reorder points before the shutdown. Go to Stocky, export your product/reorder data as CSV.
Open a spreadsheet. Add a column: Reorder Point = (Daily Sales × Lead Time) + Safety Stock. Calculate per SKU using your last 30 or 90 days of sales data (pull from Shopify Admin → Analytics → Sales by product).
In Shopify Admin, go to Products → select a product → select a variant → scroll to Inventory → enter your calculated number in the low stock field.
Repeat for every variant. Set up a calendar reminder to review thresholds quarterly or when demand patterns shift.

Time investment: ~15 minutes for the formula setup, then 2–5 minutes per variant. Worth it for stores under 30 SKUs.

Option B: SimpleStock

Install SimpleStock from the Shopify App Store. Free plan covers 30 SKUs, no credit card.
On the dashboard, you’ll see your inventory automatically pulled from Shopify. Products appear with current stock levels.
Go to Settings → Vendors. Add your suppliers with their lead times in days. This is the data that was stored inside Stocky — you’ll need your Stocky export (or supplier emails) to fill it in.
On the Growth plan, go to each product and assign it to a vendor. The app uses vendor lead time + sales velocity to suggest a reorder point. You can override it manually if you prefer a different threshold.
Enable email alerts under Settings → Alerts. Set your notification email address.
Test it: temporarily lower a threshold below current stock on a test product. Confirm you receive the alert email. Then reset.

Total setup time: under 30 minutes for a store with 50–100 SKUs, assuming you have your supplier lead times handy.

Option C: Prediko

Install Prediko. Start a trial on their Starter plan.
Prediko pulls your Shopify sales history automatically. Their system starts building demand models within 24–48 hours of install.
Add your suppliers and lead times in their vendor settings.
Review their reorder suggestions in the replenishment dashboard. Adjust safety stock targets if you want more or less buffer.
Set alert notifications in their settings.

Prediko’s onboarding is more involved than SimpleStock’s — plan for a 1–2 hour setup to configure products, vendors, and review initial suggestions before relying on the alerts.

When You Need More Than Alerts

This article is scoped to the alerts use case. If your Stocky usage went deeper, alerts alone won’t cover you.

Signs you need a fuller tool:

You generated purchase orders inside Stocky and tracked received vs. ordered quantities. Alerts don’t help with PO workflow. Look at Prediko or Inventory Planner.
You used Stocky’s stock transfer feature (moving inventory between your locations). SimpleStock and Shopify native don’t handle stock transfers. Use Sumtracker or Inventory Planner.
You had forecasting turned on and relied on seasonal predictions. Forecasting was removed from Stocky in July 2025 already, but if you want it back, Prediko or Inventory Planner have it.
You have a team of 2+ people managing inventory and need audit trails, approval workflows, or PO collaboration. You’re in enterprise territory — Inventory Planner or a dedicated procurement tool.

For the full comparison including PO workflow, forecasting, and supplier management, see the Stocky replacement guide.

FAQ

Does Shopify have built-in low stock alerts after Stocky shuts down?

Yes. Shopify Admin has a per-variant low stock threshold that triggers an email notification. It’s free, built into the platform, and works for basic use cases. The limitation is that it requires you to set thresholds manually without any lead-time or sales-velocity calculation. It also offers no dashboard aggregating all low-stock items — you’d need to check individual products or build a custom report.

What formula did Stocky use for reorder points?

Stocky used the standard reorder point formula: Reorder Point = (Daily Sales Velocity × Lead Time) + Safety Stock. The sales velocity was calculated from your Shopify order history, and lead time came from the supplier you assigned to each product inside Stocky. Most good inventory apps use the same formula, sometimes with AI-based adjustments layered on top.

Can I get Slack alerts when stock is low on Shopify?

Not natively. Shopify’s built-in alerts are email only. SimpleStock is also email only. If you need Slack delivery, you’d need to build a custom Shopify Flow automation (Shopify Flow can send webhooks, which you could route to Slack via Zapier or a custom webhook endpoint), or use a tool like Prediko that may have Slack integration on higher tiers. Check current Prediko documentation for their notification options — this changes.

What’s the difference between a reorder point and a safety stock level?

Safety stock is a buffer — extra inventory held to absorb demand spikes or supplier delays. The reorder point is the stock level that triggers you to place an order. Safety stock is a component of the reorder point calculation: Reorder Point = (Daily Sales × Lead Time) + Safety Stock. If you set no safety stock (buffer = 0), you’re assuming the supplier always delivers exactly on time and demand never spikes, which is rarely true.

I only have 20 SKUs. Do I actually need a third-party app?

Probably not. With 20 SKUs, Shopify native alerts plus a simple spreadsheet for the reorder point math is manageable. Spend an afternoon setting it up once, and you’ll have 30 minutes of quarterly maintenance. Third-party apps add value when the manual work at your SKU count starts taking more time than the app costs.

How do I calculate daily sales velocity for the reorder point formula?

Pull a sales report from Shopify Admin → Analytics → Sales by product. Use the last 30 days as your baseline for products with stable demand. For seasonal products, use the same 30-day window from last year, or use the last 90 days of the selling season. Divide total units sold by the number of days in the period. If you sold 240 yoga mats in the last 30 days: 240 ÷ 30 = 8 units/day.

What happens to my Stocky reorder point data on August 31, 2026?

The data disappears when Stocky shuts down. Stocky stores reorder points internally — they are not written back to Shopify’s product data. If you haven’t exported before the shutdown, those thresholds are gone. Export now: in Stocky, look for the product or reorder export option and save the CSV. You’ll use it to re-enter thresholds in whichever system you pick.

Can I use SimpleStock on the free plan for reorder alerts?

Yes, with limits. The free plan covers up to 30 SKUs and includes basic low-stock alerts with manual threshold setting. Lead-time-aware reorder suggestions (where the app calculates the threshold based on your vendor lead time and sales velocity) require the Growth plan at $14.99/month. If you have 30 or fewer SKUs and don’t mind setting thresholds manually, the free plan works.

The Short Version

If you used Stocky mainly for reorder alerts and not much else:

Under 30 SKUs, stable demand: Shopify native alerts are free and sufficient. Do the reorder point math once in a spreadsheet, enter the numbers, move on.
30–200 SKUs, or you want the math done for you: SimpleStock’s Growth plan at $14.99/month. Lead-time-aware suggestions, multi-location, dashboard view of everything low.
Seasonal demand or you want AI-adjusted suggestions: Prediko at $49/month minimum. The dynamic forecasting is real value for stores where demand shifts significantly.
Need PO management alongside alerts: Don’t stop at an alert-only tool. See the full replacement guide.

The deadline is August 31, 2026. If you want to run your replacement system alongside Stocky to validate it before the cutover, you have roughly 16 weeks. The setup for any of these options takes a day at most. Don’t leave it for August.

If you’re on the SimpleStock path, the free plan is at apps.shopify.com/simplestock — no credit card, 30 SKUs, up to 10 minutes to install and see your stock health. If something doesn’t work the way you expect, email support@kumostudio.dev — that’s me, usually reply within a day.

よくある質問

Q. Does Shopify have built-in low stock alerts after Stocky shuts down?: Yes. Shopify Admin has a per-variant low stock threshold that triggers an email notification. It's free, built into the platform, and works for basic use cases. The limitation is that it requires you to set thresholds manually without any lead-time or sales-velocity calculation. It also offers no dashboard aggregating all low-stock items — you'd need to check individual products or build a custom report.
Q. What formula did Stocky use for reorder points?: Stocky used the standard reorder point formula: Reorder Point = (Daily Sales Velocity x Lead Time) + Safety Stock. The sales velocity was calculated from your Shopify order history, and lead time came from the supplier you assigned to each product inside Stocky. Most good inventory apps use the same formula, sometimes with AI-based adjustments layered on top.
Q. Can I get Slack alerts when stock is low on Shopify?: Not natively. Shopify's built-in alerts are email only. SimpleStock is also email only. If you need Slack delivery, you'd need to build a custom Shopify Flow automation (Shopify Flow can send webhooks, which you could route to Slack via Zapier or a custom webhook endpoint), or use a tool like Prediko that may have Slack integration on higher tiers. Check current Prediko documentation for their notification options — this changes.
Q. What's the difference between a reorder point and a safety stock level?: Safety stock is a buffer — extra inventory held to absorb demand spikes or supplier delays. The reorder point is the stock level that triggers you to place an order. Safety stock is a component of the reorder point calculation: Reorder Point = (Daily Sales x Lead Time) + Safety Stock. If you set no safety stock (buffer = 0), you're assuming the supplier always delivers exactly on time and demand never spikes, which is rarely true.
Q. I only have 20 SKUs. Do I actually need a third-party app?: Probably not. With 20 SKUs, Shopify native alerts plus a simple spreadsheet for the reorder point math is manageable. Spend an afternoon setting it up once, and you'll have 30 minutes of quarterly maintenance. Third-party apps add value when the manual work at your SKU count starts taking more time than the app costs.
Q. How do I calculate daily sales velocity for the reorder point formula?: Pull a sales report from Shopify Admin > Analytics > Sales by product. Use the last 30 days as your baseline for products with stable demand. For seasonal products, use the same 30-day window from last year, or use the last 90 days of the selling season. Divide total units sold by the number of days in the period. If you sold 240 yoga mats in the last 30 days: 240 / 30 = 8 units/day.
Q. What happens to my Stocky reorder point data on August 31, 2026?: The data disappears when Stocky shuts down. Stocky stores reorder points internally — they are not written back to Shopify's product data. If you haven't exported before the shutdown, those thresholds are gone. Export now: in Stocky, look for the product or reorder export option and save the CSV. You'll use it to re-enter thresholds in whichever system you pick.
Q. Can I use SimpleStock on the free plan for reorder alerts?: Yes, with limits. The free plan covers up to 30 SKUs and includes basic low-stock alerts with manual threshold setting. Lead-time-aware reorder suggestions (where the app calculates the threshold based on your vendor lead time and sales velocity) require the Growth plan at $14.99/month. If you have 30 or fewer SKUs and don't mind setting thresholds manually, the free plan works.