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How to Forecast Sales on Shopify (Beginner Guide)

A simple guide for Shopify merchants

Forecasting sales on Shopify helps you avoid stockouts, plan inventory, and make better purchasing decisions. This guide explains the simplest methods Shopify merchants can use today — without needing spreadsheets or a data background.

Why Sales Forecasting Matters for Shopify Stores

Forecasting helps you understand what your customers are likely to buy next. With accurate predictions, you can plan restocks, allocate marketing spend, and keep your store running smoothly without tying up cash in slow-moving products.

3 Ways to Forecast Shopify Sales

1. Manual forecasting using past sales

Look at the last 30–90 days of sales and estimate future demand. This method works for very small stores but quickly becomes inaccurate as your catalog grows.

2. Spreadsheet formulas (Excel or Google Sheets)

Many merchants export their Shopify orders into spreadsheets and calculate average daily sales or growth rates. This improves accuracy slightly but takes time and misses product-level patterns.

3. Automated Sales forecasting (fastest & most accurate)

Automated Sales forecasting tools analyze your real Shopify data and produce SKU-level predictions automatically. This eliminates guesswork and adapts as your store grows.

Better Forecasts Come From SKU-Level Data

Instead of forecasting your entire store at once, accurate systems forecast each SKU separately. This matters because every product behaves differently — seasonality, promotions, ads, and inventory levels all influence future sales.

Forecast Your Shopify Sales Automatically with DemandMind

DemandMind turns your Shopify order history into clear, daily SKU-level forecasts so you always know what’s coming next.

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