How to Set Up Automated Low Stock Alerts for Shopify
Stockouts Are Expensive. Discovering Them Late Is Worse.
Every stockout has two costs. There's the obvious one: the sales you didn't make because the product wasn't available. Then there's the hidden one: the customer who checked, saw "out of stock," and went to your competitor. That customer might not come back.
Industry data shows stockouts cost retailers over a trillion dollars per year globally. For a small Shopify store, a single stockout on your best-selling product during a busy weekend can mean thousands in lost revenue -- plus the ad spend you wasted driving traffic to a page that couldn't convert.
The fix is straightforward: get alerted before you run out, not after. But Shopify's built-in inventory tools make this harder than it should be.
What Shopify Gives You (And What It Doesn't)
Shopify tracks inventory levels. You can see current stock counts in your admin panel. Some plans include basic low stock notifications.
What Shopify doesn't do:
- Alert you based on sell-through velocity. A product with 50 units and a reorder lead time of 3 weeks needs a different alert threshold than one with 50 units and next-day restocking. Static thresholds miss this.
- Cross-reference with sales trends. Your best seller in December needs a higher reorder point than the same product in March. Shopify doesn't adjust for seasonality.
- Watch multiple products simultaneously with different thresholds. Setting individual alert rules for 200 SKUs in Shopify isn't practical.
- Alert you at 2am on a Saturday. If a flash sale burns through inventory faster than expected, you need to know now, not Monday morning.
What Good Low Stock Alerts Look Like
Useful inventory alerts do three things:
They fire at the right time. Not when you hit zero -- that's too late. Not when you hit an arbitrary number -- that's too generic. The right time is when current stock minus projected demand over your lead time hits your safety stock level.
They tell you what to do about it. "SKU-1234 is low" isn't helpful. "Summer Bundle has 12 units remaining, selling 4/day, with a 5-day reorder lead time -- you'll stock out by Thursday" tells you exactly what the situation is.
They don't stop when you're not looking. The whole point of an alert is that it works when you're not checking. Saturday night, holiday weekends, that week you're at a conference -- the alerts keep firing.
Setting This Up With Norvius
Norvius connects to your Shopify store and monitors inventory levels continuously. Not once a day. Not when you check. Continuously.
Tell Norvius what you want: "Alert me when any product is projected to stock out within 7 days based on current sell-through rate." Norvius monitors every SKU, calculates velocity, factors in your reorder lead times, and fires alerts to your inbox, Slack, or dashboard the moment a product crosses the threshold.
Because Norvius also connects to your other tools, the alerts include context. If a product is selling faster than usual because of a promotion you're running through Klaviyo or a spike in ad traffic from Meta, the alert tells you why demand is elevated -- not just that stock is low.
The monitoring runs 24/7 at zero cost per check. Norvius uses locked queries after initial setup, so there's no AI processing fee every time it scans your inventory. That's what makes continuous monitoring affordable on a flat-rate plan.
What This Prevents
One prevented stockout on a $30 product selling 20 units/day over a 3-day outage is $1,800 in recovered revenue. Norvius starts at $39/month.
The alert that fires on Saturday night before your best seller runs out pays for itself before you finish reading it.