Ever wonder if your products are actually doing what you think they're doing?
Let's break down sales by product tracking - it's simpler than you might think, but way more powerful than most people realize.
Getting the Data
No rocket science here - just pull your sales by product reports from Shopify and/or Amazon, combine them, and you're ready to roll.
The real magic happens in how you use this information.
Why This Matters More Than You Think
Think of sales by product data as your reality check.
Sure, you might have grand plans for which products should be your stars, but are they actually performing that way?
It's not about discovering mind-blowing new insights (though sometimes you might). It's about making sure reality matches your strategy.
The Hidden Stories in Your Product Sales
Your products might be playing different roles than you realize:
- Some might be your secret weapons for attracting new customers
- Others could be your retention heroes, bringing people back
- And some might be crushing it in specific acquisition channels
Watch Out for Product Cannibalization
Here's a fun real-world example: Say you're selling bulletproof shirts (because why not?), and then you launch these amazing quirky shirts.
Suddenly, your bulletproof shirt sales tank while quirky shirts soar. Classic cannibalization in action.

Is this bad?
Not necessarily - it all depends on your margins and strategy.
But you definitely want to know it's happening.
Trend Watching 101
Unless you're running some killer Facebook ads or dropping massive discounts, your product sales shouldn't look like a roller coaster month to month.
What you want to watch for are those slow, steady trends - the gradual risers and decliners that tell you where your business is really heading.
Using This Data for Forecasting
When you spot a product climbing the sales charts, that's your cue to adjust your inventory strategy.
Nobody wants to be that brand that runs out of their hottest product just as it's taking off.
The Bottom Line
This metric is your business reality check. It helps you:
- Validate your product strategy
- Spot emerging trends
- Make smarter inventory decisions
- Catch potential issues before they become problems
Remember: This is just one piece of your metrics puzzle.
Combine it with other key metrics from our guide, and you'll have a complete picture of your business performance.
Want to see how sales by product analysis fits into your broader eCommerce strategy?
Check out our full guide to essential eCommerce metrics that actually impact your bottom line.