If you've been selling on Amazon for any length of time, you've probably run a promotion that felt like a gamble. You offered a discount, saw a temporary bump in sales, and then watched everything return to baseline once the deal ended. The promotion cost you margin, and the results didn't stick.

That experience is exactly why many brands have written off promotions entirely. But something has fundamentally changed on the platform, and it's worth paying attention to, especially with Prime Day approaching.

Watch the full webinar: Promotion Management on Amazon >>>

A Quick Look at How We Got Here

Amazon's marketplace has gone through distinct phases. In the early days (2010 to 2012), organic visibility was enough. A good listing with the right keywords could grow without any ad spend. Then Sponsored Products arrived around 2012, and the brands that adopted paid media early gained a compounding advantage.

By 2016 to 2018, advertising on Amazon had become a necessity, not a differentiator. The pandemic accelerated that further. Ecommerce surged, competition intensified across every category, and ad spend became table stakes.

Today, Amazon's advertising revenue has grown 23% year over year and represents roughly 10% of the company's total revenue. Advertising is now core infrastructure for how brands compete on the platform.

So what comes next?

Amazon's New Promotional API Changes the Game

Amazon has introduced a new promotional API that enables something that was never possible before: real coordination between promotions and advertising. Through our Amazon partnership, Quartile has early access to these capabilities, including API-driven automation, advanced audience targeting through Amazon Marketing Cloud (AMC), and the infrastructure to coordinate both channels in real time. These capabilities are not broadly available to other providers yet.

This is not a small product update. It's the kind of structural shift we saw when advertising first launched on the platform. The brands that recognized that shift early and invested in it built advantages that compounded over years. The same opportunity exists now with strategic promotion management.

Here's what's different compared to the old approach:

Before: Limited deal structures. High fixed fees for events like Lightning Deals. Everything set up manually. No performance data tied to promotions. Every shopper saw the same deal regardless of their purchase history.

Now: Flexible deal structures. Reduced or eliminated fixed fees. API access for automation. Full performance tracking. Advanced audience targeting through Amazon Marketing Cloud (AMC).

These are not incremental improvements. It's a fundamentally different toolkit.

The Real Opportunity: PPC and Promotions Working Together

Most brands run their advertising and their promotions as separate efforts. The ad team manages bids and budgets. Someone else sets up a coupon or a Lightning Deal. The two rarely talk to each other.

That disconnect is where money gets wasted. Promotions without targeted traffic have limited impact. Traffic without a conversion mechanism leads to inflated ad spend.

When advertising and promotions are coordinated, the math changes. Promotions improve conversion rates. Better conversion rates improve what you're getting from your advertising. The savings on the ad side, combined with the incremental sales velocity from the promotion, more than offset the promotional discount.

The goal is not a one-time sales spike that disappears when the deal ends. The goal is lasting organic ranking gains that reduce your dependence on paid placement over time. Promotions create velocity. That velocity signals to Amazon's algorithm. Your organic position improves. And that improvement is durable.

Measuring What Actually Matters: TACoS and TPCS

One of the biggest barriers to running promotions is the perception that they always cost more than they return. That perception exists because most sellers measure the wrong thing.

TACoS (Total Advertising Cost of Sales) is the standard efficiency metric. But when you add promotions into the mix, you need a more complete picture. That's why we created TPCS (Total Promotion Cost of Sales), a metric designed to solve this exact visibility gap. TPCS accounts for both advertising spend and promotional cost against total revenue, giving brands a unified view of what it actually costs to generate each dollar of sales.

The mistake most sellers make is evaluating promotional cost in isolation. They see the discount and assume it's purely additive to their total cost. But when promotions and advertising are coordinated, the promotional discount drives higher conversion rates, which makes the advertising more efficient. The total cost to generate revenue actually decreases.

On average, brands working with a coordinated approach see a 15% to 20% reduction in TACoS while growing sales by 10%. And because coordinated promotions systematically build Subscribe and Save subscribers and repeat purchasers, we also see a 30% improvement in customer lifetime value, meaning the efficiency gains compound well beyond the promotional window.

Who Should Be Thinking About This?

Strategic promotion management tends to drive the strongest results for brands that:

• Want to grow sales without proportionally scaling ad spend

• Are stuck in a cycle of paid placement dependency and want to build sustainable organic visibility

• Sell consumables and want to systematically grow their Subscribe and Save subscriber base

• Need to compete effectively during peak events like Prime Day, Back to School, or Black Friday

If any of those describe your situation, this is worth exploring before the next major tentpole event.

What Coordinated Execution Looks Like in Practice

A coordinated promotion strategy follows a continuous cycle:

Audit and Plan. Identify the right products, the right promotion types, and the right target audiences. This is not guesswork. It's data-driven selection based on keyword performance, competitive positioning, and audience signals from AMC.

PPC Sync. During the promotional window, advertising budgets and bids are adjusted to amplify the promotion. Competitor targeting and audience-specific campaigns are coordinated so that your ads and your promotion are reinforcing each other.

Optimization Loop. Click-through rates, conversion rate lifts, and bid performance are monitored in real time. Dynamic adjustments happen throughout the promotional window, not after it ends.

Reporting. Volume is not the only metric that matters. Organic ranking movement, Subscribe and Save acquisition, and long-term efficiency gains are tracked alongside revenue. These are the signals that tell you whether the results are sustainable.

This is not a one-time process. It runs continuously, with each cycle informing the next.

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Real Results: JAWS

Just Add Water System (JAWS), a sustainable home cleaning brand known for its refill-based cleaning system, partnered with Quartile to turn Amazon promotions into a more strategic growth lever.  

Instead of running isolated discounts, Quartile aligned promotions with advertising campaigns and customer behavior to support acquisition, conversion, and long-term retention.  

The strategy combined Brand Tailored Promotions, coupon offers, and Subscribe & Save incentives to encourage first-time trial and repeat purchases.  

JAWS achieved 150% growth in active Subscribe & Save subscriptions, a 62% increase in new-to-brand orders, and a 12% improvement in combined advertising and promotional efficiency.

Why This Matters Right Now

Prime Day is approaching. If you're planning to run promotions during the event, the difference between a coordinated strategy and a standalone discount is the difference between a temporary spike and a lasting competitive advantage.

The brands that move first on strategic promotion management in 2026 will build the same kind of compounding advantage that early advertising adopters built in 2012. The window is open now.

If you're a current Quartile customer, reach out to your account manager or Customer Growth Manager to learn how Promotion Management can fit into your Prime Day strategy.

Watch the full webinar: Promotion Management on Amazon >>>

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