The Shopify Mistake That's Costing You Money (And How to Fix It)

We recently helped a customer who was struggling with how many products by vendor they had in their Shopify store. They came to us frustrated, knowing something was off with their inventory, but they couldn't quite put their finger on what.

"I feel like I'm bleeding money somewhere," the merchant told me on our first call. "My costs keep going up, but I can't figure out why."

Sound familiar?

The Challenge: When Your Catalog Becomes a Cost Center

This particular merchant ran a mid-sized home goods store with about 800 products. On the surface, everything looked fine. Sales were steady. Customer reviews were positive. But their profit margins had been shrinking quarter over quarter, and they were starting to panic.

The problem? They had absolutely no visibility into how their product catalog was actually structured. They knew they worked with multiple vendors, but they'd never analyzed the distribution. Were they over-reliant on one supplier? Were they carrying too many products from vendors that required high minimum orders? They had no idea.

I've seen this exact scenario play out dozens of times. Shopify makes it incredibly easy to add products—maybe too easy. You start with one vendor, then add another, then you discover a third supplier with amazing prices on just a few items. Before you know it, your catalog is a frankensteined mess of products from 15 different vendors, each with their own shipping costs, minimum order quantities, and payment terms.

What the Data Revealed

We started by running a simple catalog overview analysis. Within five minutes, we had a complete breakdown of their 800 products by vendor, collection, and product type. The numbers were... eye-opening.

Here's what we discovered:

When I showed them the vendor distribution chart from our catalog overview tool, the merchant literally gasped. "I had no idea we even worked with some of these vendors anymore," they admitted.

The Surprising Insight: The 80/20 Rule Was More Like 95/5

Here's where it got really interesting. We dug deeper into the sales data alongside the catalog breakdown. What we found was a textbook case of catalog bloat driving up costs without driving revenue.

Their top 3 vendors accounted for 94% of their revenue. But they were spending administrative time, money, and mental energy managing relationships with 12 vendors total. Every additional vendor meant:

When we calculated the fully-loaded cost of managing each vendor relationship—including their operations manager's time, payment processing fees, and the opportunity cost of complexity—we estimated they were spending roughly $850/month per vendor in overhead.

For the 9 vendors contributing less than 6% of revenue? That was over $7,500/month in hidden costs for minimal return.

But here's the kicker: because they'd never looked at their catalog this way, they'd recently expanded their relationship with one of their smallest, most administratively complex vendors. They'd added 40 new products the previous month, thinking more selection = more sales. Instead, they'd just added $850/month in overhead for products that would likely never break even.

Taking Action: The Catalog Consolidation Strategy

Armed with actual data, we worked with the merchant to develop a vendor consolidation plan. The strategy was surprisingly straightforward:

Phase 1: Immediate Cuts (Week 1)

We identified 3 vendors who hadn't generated a single sale in 6 months. The merchant reached out, explained they were streamlining, and gave 30-day notice. Those vendors were actually relieved—our merchant had been one of their smallest accounts too, and the relationship was mutually unprofitable.

Phase 2: Strategic Consolidation (Month 1-2)

For the remaining low-performing vendors, we looked at whether those products could be sourced from their top-3 suppliers instead. In many cases, the answer was yes. Their largest vendor actually carried 80% of the items they were sourcing elsewhere, often at better prices because of volume discounts.

Phase 3: Vendor Relationship Optimization (Month 3)

With a streamlined vendor list, the merchant could actually invest in deeper relationships with their core suppliers. They negotiated better terms, improved net-60 to net-45 payment schedules, and even secured exclusive products that their competitors couldn't access.

Results and Lessons Learned

Three months after our initial analysis, the numbers spoke for themselves:

But the biggest win? Peace of mind. "I can actually see what's in my catalog now," the merchant told me. "I'm making decisions based on data instead of gut feeling and vendor sales pitches."

They now run a catalog overview analysis monthly, tracking how product distribution changes over time. When a sales rep approaches them about adding a new vendor, they ask themselves: "Does this fit our catalog strategy, or are we just adding complexity?"

I've seen similar results with other merchants too. One apparel retailer discovered they had 23 different shoe vendors but were only profitably selling from 4 of them. A beauty products store found they were paying storage fees on 200+ SKUs from a vendor they'd mentally "broken up with" a year ago but never formally offboarded.

The pattern is consistent: most Shopify merchants have no idea how their catalog is actually organized by vendor. And that blind spot is expensive.

How to Avoid This Costly Mistake

Here's what I recommend to every Shopify merchant we work with:

1. Map your catalog structure quarterly (at minimum)
You can't optimize what you can't see. Understanding your product distribution by vendor, collection, and type is foundational. Our catalog overview analysis makes this take 5 minutes instead of 5 hours.

2. Calculate the true cost of vendor relationships
It's not just the product cost. Factor in your time, payment processing, shipping coordination, and mental overhead. Some vendor relationships cost more than they're worth.

3. Apply the 80/20 rule ruthlessly
Which vendors drive the majority of your revenue? Those are your strategic partners. Everyone else is overhead until proven otherwise.

4. Before adding products, check your catalog balance
That exciting new vendor with amazing products might be amazing—or they might be your 15th vendor adding complexity without ROI. Check your data first.

5. Look for consolidation opportunities
Can your top vendors supply products you're currently sourcing elsewhere? You might be surprised. We've helped merchants discover they were buying the exact same items from different suppliers at different prices.

I also recommend reading our guide on product bundle affinity analysis—it's another way to optimize your catalog for profitability by understanding which products actually sell together.

Your Next Step

If you've never analyzed how your Shopify catalog breaks down by vendor, you're almost certainly leaving money on the table. The good news? It's incredibly easy to fix once you can actually see the problem.

We built our catalog overview tool specifically for this. Connect your Shopify store, and in about 5 minutes you'll have a complete breakdown of your products by vendor, type, and collection. No spreadsheets, no manual counting, no guesswork.

Ready to see what your catalog actually looks like?
Run a free catalog overview analysis →

You might discover, like our customer did, that the answer to "how many products by vendor do I have?" is the key to unlocking thousands in monthly savings.

Want to explore more ways to optimize your Shopify operations? Check out our tutorials section for step-by-step guides, or book a demo to see how we've helped hundreds of merchants turn their data into profit.

Because the best time to understand your catalog was when you hit 100 products. The second best time is right now.