A five-minute daily reorder routine is possible when three things are in place: a calculated reorder point for every active SKU, a ranked list of what needs attention today (not everything at once), and a single trigger to act on. Without those three ingredients, "checking inventory" turns into an open-ended task that expands to fill whatever time you give it.
Key takeaways
- A reorder point formula, not gut feel, is what makes a five-minute routine possible.
- Urgency ranking (which SKU runs out first?) is the bottleneck most merchants never solve.
- The daily check has one job: act on today's alerts, then close the tab.
- Shopify's native tools track quantities but do not calculate reorder points or generate POs automatically.
- A daily email digest is the fastest forcing function for a consistent routine.
Why Most "Daily Checks" Take 45 Minutes Instead of Five
The problem is not discipline, it is the absence of a pre-sorted signal. When every SKU looks equally urgent, you end up reading through everything. Research aggregated across inventory professionals shows that poor inventory visibility and slow reorder cycles are among the leading causes of the 72% of stockouts that originate from the retailer's own operations, not supplier failures. You are not running out of stock because your supplier is slow. You are running out because the alert came too late, or never came at all.
A best-seller going out of stock for just five days costs real money. Using the standard formula, a product priced at $25 that sells 10 units per day generates $1,250 in lost revenue over a five-day stockout, before factoring in cross-sells, cart abandonment, or the roughly 43% of customers who switch to a competitor and do not come back. A monthly app subscription costs a fraction of a single avoidable stockout.
The Core Formula Behind the Routine
Everything in a five-minute reorder routine depends on one number being calculated correctly for each SKU:
Reorder Point (ROP) = (Average Daily Sales x Lead Time in Days) + Safety Stock
For example, a product selling 20 units per day with a 14-day supplier lead time and 31 units of safety stock has a reorder point of 311 units. When stock hits 311, you place the order. See the inventory glossary for definitions of safety stock, lead time, and days of cover if any of those terms need grounding.
The math is not complicated. What makes it hard at scale is recalculating it dynamically as sales velocity changes. A product that averaged 5 units per day in July may be running at 15 per day in October. A static number set six months ago is not a reorder point. It is a guess that ages badly.
The Five-Minute Routine, Step by Step
This is the actual sequence. It only works if your reorder points are already calculated and your SKUs are already ranked by urgency.
- Open your daily digest or alerts view. You are looking for SKUs whose current stock is at or below their reorder point. This is the only list that matters today.
- Triage by days of cover. Sort by which product runs out soonest given current velocity. A SKU with 3 days of cover and a 7-day lead time is already late. A SKU with 18 days of cover and a 5-day lead time can wait.
- Confirm the reorder quantity. The quantity should come from a formula (order enough to cover lead time + safety stock buffer at current velocity), not from memory or last month's PO.
- Send or approve the purchase order. If your supplier is already in the system with contact details and cost prices, this is a 30-second step.
- Note any anomalies. A SKU spiking 3x its normal daily rate is not just a reorder trigger. It is a signal to look at whether the standard quantity is still right.
Five minutes. If it takes longer, the bottleneck is almost always step 1 (no pre-sorted signal) or step 3 (no formula, just guessing).
What Shopify Gives You Out of the Box (and What It Does Not)
Shopify tracks stock quantities and decrements them on every sale. That is genuinely useful. What it does not do:
- Calculate reorder points dynamically from sales velocity and lead time
- Rank SKUs by urgency (days of cover vs. lead time)
- Auto-generate purchase orders based on projected demand
- Surface dead stock sitting below your minimum viable velocity
- Send a daily digest that forces a decision rather than a report you have to go find
For catalogs under roughly 50 SKUs, native Shopify low-stock alerts are workable. Beyond that threshold, the gaps compound quickly.
| Approach | Works best when | Trade-off |
|---|---|---|
| Shopify native alerts | Under 50 SKUs, single location | Static threshold, no formula, no PO generation |
| Spreadsheet + manual calc | Under 100 SKUs, stable velocity | Breaks with velocity changes, high maintenance |
| Inventory app with daily digest | 50 to 10,000+ SKUs, variable demand | Setup time upfront, ongoing accuracy |
| Gut feel / tribal knowledge | Zero SKUs (never) | Stockouts guaranteed at scale |
How to Make the Routine Stick
The single biggest reason daily reorder routines fail is that they require the merchant to remember to go look at something. Routines that depend on willpower erode. Routines that are pushed to you survive.
The mechanism that works:
- A daily email digest that arrives at the same time every morning with a ranked list of SKUs needing action. You open it, make decisions, and move on.
- Urgency ranking by days of cover, not by raw unit count. A SKU with 50 units and a 3-day lead time selling 20 units per day is more urgent than a SKU with 5 units and a 90-day lead time.
- Supplier data already stored so that placing a PO does not require opening a separate spreadsheet or email thread to find the contact and cost price.
- Transparent math on every recommendation so you can override it with confidence, not just accept a number from a black box.
Stockcast: Inventory Forecast is built around exactly this workflow: a daily email digest, urgency-ranked stockout predictions, and every recommendation showing the calculation behind it so you can audit or override it in seconds. If you are currently rebuilding supplier data after the Stocky shutdown, the CSV import gets your supplier and cost records loaded without starting from scratch.
The Routine as a System, Not a Task
The five-minute daily check is not a productivity trick. It is the output of a system that does the heavy lifting before you ever open a browser tab. Reorder points calculated from real velocity. SKUs ranked so the most urgent is always at the top. Purchase orders that take seconds to confirm, not minutes to build.
Merchants who run this well describe it the same way: they stopped reordering by memory and started reordering by math. The math does not forget. It does not have bad days. And it does not let a best-seller go dark for 35 days because nobody checked.
If you want to see what a pre-sorted, math-first daily reorder workflow looks like in practice, the Stockcast: Inventory Forecast app on the Shopify App Store has a free plan for up to 25 SKUs and a 14-day trial on paid tiers.
FAQ
How often should I check inventory reorder alerts on Shopify?
For most merchants with 50 or more SKUs, a daily check is the right cadence. Products that sell at moderate velocity can cross their reorder point within 24 hours of you last checking, especially during peak periods. Weekly checks work only if every product has at least 14 or more days of cover at current velocity and your lead times are short.
What is the difference between a reorder point and a low-stock alert?
A low-stock alert is a static number you set manually, for example "alert me when stock drops below 10 units." A reorder point is a calculated threshold based on daily sales velocity, supplier lead time, and safety stock. The same SKU might need a reorder point of 80 units in October and 15 units in February. A fixed alert does not adapt to that change.
What should a daily reorder digest include?
A useful daily reorder digest shows SKUs ranked by days of cover remaining (not by raw unit count), the current stock level, the calculated reorder point, the suggested order quantity with the formula visible, and the supplier name and lead time. That is everything needed to make a decision without opening another tab.
Frequently asked questions
How often should I check inventory reorder alerts on Shopify?
For most merchants with 50 or more SKUs, a daily check is the right cadence. Products that sell at moderate velocity can cross their reorder point within 24 hours, especially during peak periods. Weekly checks only work if every product has at least 14 days of cover at current velocity and your lead times are short.
What is the difference between a reorder point and a low-stock alert?
A low-stock alert is a static number you set manually, such as alerting when stock drops below 10 units. A reorder point is a calculated threshold using daily sales velocity, supplier lead time, and safety stock. The same SKU might need a reorder point of 80 units in October and 15 units in February, and a fixed alert does not adapt.
What should a daily reorder digest include?
A useful daily digest shows SKUs ranked by days of cover remaining, current stock level, the calculated reorder point, suggested order quantity with the formula visible, and the supplier name and lead time. That is everything needed to make a decision without opening another tab.