Shopify Inventory Forecasting After Stocky: Reports and Apps

Shopify inventory forecasting without Stocky, which stopped working on August 31, 2026, starts with Shopify’s built-in inventory reports, including inventory remaining per product, which estimates days of stock left for each variant. From the daily sales figure and your supplier’s lead time you can calculate a reorder point for each product in a spreadsheet. A forecasting app becomes worth paying for when you have hundreds of SKUs, seasonal demand or several warehouses, and the spreadsheet stops being kept up to date.

Report definitions come from the Shopify Help Center pages on inventory reports and ABC analysis (read October 23, 2026). The reorder example uses our own round numbers.

The reports to forecast from

Open Analytics > Reports, filter Category to Inventory, and use these five:

A few details change how you read them:

• History starts on October 1, 2023. Inventory metrics before that date are not available, so a store with older seasonal peaks cannot see them here.
• From October 1, 2026, stock is counted as On hand. Reports now measure On hand instead of Available. On hand includes Committed units (in unfulfilled orders, draft orders and transfers marked ready to ship) and Unavailable units (damaged, quality control, safety stock), so reported quantities can be higher than before. Data before that date still shows Available, so a chart spanning October 2026 has a step in it that is not real demand.
• Quantity sold ignores returns and adjustments. The daily sales report counts orders, not restocks from returns or manual corrections.
• Sell-through runs about two days behind because of data processing.
• ABC uses a fixed 28-day window and ignores cost, so a high-revenue, low-margin product can be grade A.
• Deleted locations and products drop out. Historical inventory for deleted locations does not show, and products deleted after January 14, 2026, stop showing from their deletion date.

Negative ending quantities in the snapshot mean either overselling or inventory tracking turned off; if tracking is on, the product sold more than you had in stock.

A reorder point you can calculate

A reorder point is the stock level at which you place the next order, so new stock arrives before you run out:

Reorder point = daily sales times lead time in days, plus safety stock

Safety stock is the buffer for late deliveries or a busy week; a simple version is a number of days of sales.

Worked example (our numbers): a mug sells 4 units a day on average over the last 60 days (from Inventory sold daily by product). The supplier takes 14 days to deliver. You want 7 days of safety stock.

When on-hand stock for the mug drops to 84, you order. How much to order depends on your supplier’s minimums and how often you want to reorder; for a steady seller you might start with 30 days of sales (120 units) per order.

Three adjustments make this better:

1. Use a period that matches the season. For a product that peaks in December, take daily sales from last November and December, not the summer.
2. Give A-grade products more safety stock than C-grade ones; a stock-out on an A product costs the most revenue.
3. Recalculate monthly. Export the daily sales report, update the spreadsheet, and check which products crossed their reorder point.

Shopify’s admin already handles purchase orders, transfers and stock counts since Stocky’s shutdown, so the order itself can be raised in Shopify once the spreadsheet tells you what to buy.

Forecasting apps

The spreadsheet method breaks down with many SKUs, several warehouses, bundles made from components, or strong seasonality, because the calculation has to be redone for every variant and location. Forecasting apps read your sales history, apply seasonality and lead times, and suggest purchase orders.

Their pricing units differ a lot: some charge by variants or SKUs tracked, some by your Shopify plan, some by your store’s annual revenue. Our roundup of the best Shopify inventory management apps compares Stockie, Assisty, Prediko and Stockful by those units, including which can import Stocky suppliers and purchase orders. For stock spread over several locations, set up locations and transfers first; see multi-warehouse inventory.

Slow movers

The sell-through report also finds the opposite problem: products with a low rate and months of stock. Shopify’s Smart Pricing app suggests markdowns for exactly this case if your store meets its sales thresholds; see Smart Pricing markdowns. More on prices and stock is collected in the pricing and sales hub and the Shopify inventory management hub.

FAQ

Does Shopify have inventory forecasting? Shopify’s Inventory remaining per product report estimates how many days each variant’s stock will last at its average sales rate, and other reports give units sold per day, sell-through rate and ABC grades. Reorder points and purchase suggestions take a spreadsheet or an app.

What replaced Stocky for forecasting? Stocky stopped working on August 31, 2026. Purchase orders, transfers and stock counts moved into the Shopify admin, and forecasting is done with Shopify’s reports or with a third-party forecasting app.

Why did my inventory report numbers jump in October 2026? From October 1, 2026, Shopify’s inventory reports count On hand stock, which includes committed and unavailable units, instead of Available stock. Earlier data still shows Available quantities.

How do I calculate a reorder point in Shopify? Take average daily sales from the Inventory sold daily by product report, multiply by your supplier’s lead time in days, and add safety stock. Reorder when stock reaches that number.