How Koblenz Achieved 280% Growth on Amazon: Unlocking Success with SalesDuo

Koblenz joined forces with SalesDuo in May 2023 to expand and develop its Amazon brand in the areas of catalog, advertising, creative, and account management. Rather than running each element in isolation, the group linked listing enhancements, ad spend, inventory planning, pricing, and seasonal preparation into one growth plan.

This case study shows how that connected approach supported Koblenz's Amazon performance and why the work went beyond advertising alone.

Koblenz Amazon Growth Snapshot

The Challenge: Scale an Established Brand on Amazon

Koblenz is an established manufacturer that sells products across floor care, commercial cleaning, and home appliances. Its product range includes vacuum cleaners, power washers, floor machines, gas cooktops, wine coolers, blenders, ovens, and other household products.

The potential on Amazon wasn’t just to run more ads. Koblenz needed to improve product visibility, develop better detail pages, use ad budgets more intelligently, and coordinate pricing, inventory, forecasting, and seasonal demand more closely.

When the partnership began in May 2023, the account showed 86.17% year-over-year growth, but the brand still had room to scale its Amazon operation more systematically.

The Strategy: Coordinate the Amazon Workstreams

SalesDuo started with an account audit that looked at product visibility, catalog quality, advertising performance, and competitive positioning.

The goal was to connect day-to-day work with broader Amazon account management services instead of managing each part of the account separately.

1. Catalog and Content Improvements

The catalog work focused on keyword coverage, product images, A+ Content, and Brand Story development.

For the 2023–2024 workflow, the team used Amazon search data to identify relevant terms and update listings around the queries most useful for Koblenz's products.

The wider goal was Amazon product listing optimization: making product information clearer, improving search relevance, and giving shoppers more useful details.

The image sets were also updated to show products from diverse perspectives and in real-life settings.

A+ Content and Brand Story modules added product comparisons, details, and brand information. This helped shoppers better understand the differences between products and what the Koblenz brand offered.

2. Advertising Management

Advertising supported the catalog work by shifting budget toward products and targeting methods that performed well.

Across the 18 months covered in the original engagement period, SalesDuo managed a marketing budget of more than $150,000. About 98% went to Sponsored Products and 2% to Sponsored Display, the Amazon Ads name used during the 2023–2024 engagement period.

The paid media strategy included automatic campaigns, manual keyword targeting, competitor targeting, defensive campaigns, and retargeting. For more details about this service, see SalesDuo's Amazon advertising management.

The 2024 YTD advertising comparison showed:

• a 1% increase in ROAS; and
• a 3% decrease in ACoS compared with 2023.

The broader account results are reported separately below. Koblenz recorded 65% Amazon sales growth during the 2024 YTD period.

3. Account Operations, Pricing, and Inventory Planning

SalesDuo's work went beyond catalog and advertising.

Account management included forecasting, pricing changes, inventory planning, and preparation for major sales periods such as Prime Day and Black Friday.

The team also monitored the catalog to reduce the risk of important products being disrupted or removed from sale.

This coordination mattered because strong advertising alone cannot solve every problem. Ad performance can suffer when a product goes out of stock, pricing changes without enough context, or a high-traffic listing is not ready to convert shoppers.

The team connected these decisions instead of managing them as separate tasks.

Results and Performance Metrics

The strongest result in the existing Koblenz case study was the 2023 sales performance.

Historical case-study reporting recorded 280% Amazon sales growth for 2023 compared with the prior year. The underlying source data is no longer available to confirm the exact comparison dates, sales definition, or account scope. Because SalesDuo's engagement began in May 2023, this full-year comparison includes performance from before the engagement.

Several of the brand's top products also showed strong performance during the engagement.

SalesDuo began coordinating catalog improvements, advertising, budget adjustments, account operations, pricing decisions, and inventory planning from May 2023 onward. The full-year 2023 growth figure therefore includes both pre-engagement and engagement-period performance.

The main lesson from this case study is not that one tactic caused all the growth. The results came from managing several parts of the account together.

Challenges Faced and How the Team Responded

The catalog needed regular attention as competitors changed their listings and search behavior shifted.

SalesDuo reviewed keywords and content over time and adjusted the 2023–2024 approach when product visibility or conversion opportunities changed.

Advertising created another challenge: growing sales without wasting budget.

The team tracked campaign performance and shifted more spend toward products and targeting methods that delivered better returns.

This made the ad strategy more responsive to actual account performance, rather than relying on a fixed budget split.

Why the Approach Worked

The account did not depend on one growth method.

Catalog improvements helped turn traffic into sales. Advertising helped shoppers find the products. Account management kept pricing, inventory, forecasting, and seasonal planning connected to the same business goals.

This reduced the chance of one area hurting another.

For established brands, the main lesson from the Koblenz engagement is that Amazon growth is easier to manage when catalog, advertising, and operations follow the same priorities and reporting process.

Where This Case Study Is Most Relevant

The Koblenz example is most useful for established brands with meaningful Amazon demand that need better coordination across several areas of the account.

It is not a one-size-fits-all plan. The right approach can change based on category economics, inventory limits, advertising performance, and the catalog's current condition.

For a newer example of account-management work, see the Brampton account management case study.

For more examples across SalesDuo clients, browse the Amazon growth case studies.

Conclusion

The Koblenz case shows how SalesDuo coordinated catalog, advertising, and account operations around the same Amazon growth plan.

The lesson for other brands is not to copy the exact budget split or campaign setup. Instead, identify which parts of the account are limiting growth and manage those areas together.

Book Your 1:1 Growth Call with SalesDuo.

Frequently Asked Questions

What did SalesDuo manage for Koblenz on Amazon?

SalesDuo managed catalog improvements, creative content, advertising, pricing, inventory, forecasting, and seasonal planning.

The work was set up as a multi-part account-management program rather than an advertising-only project.

When did the Koblenz and SalesDuo partnership begin?

The partnership started in May 2023.

The case study covers work completed during 2023 and also includes 2024 YTD performance data from the original reporting period.

Was Koblenz's growth driven only by Amazon advertising?

No.

Advertising was one part of the plan. The case study also connects the account's progress to listing and content improvements, inventory planning, pricing decisions, forecasting, and ongoing account management.

Which Amazon ad formats did SalesDuo use for Koblenz?

Most of the historical ad budget went to Sponsored Products, while a smaller share went to Sponsored Display.

The campaign strategy included automatic targeting, manual keyword targeting, competitor targeting, defensive campaigns, and retargeting.

About the Author

Maaz Javeed Mohammed and Giridhara Prasad bring their expertise in eCommerce to this blog. Maaz focuses on refining sales strategies, while Giridhara, an Associate Director at SalesDuo and ex-Amazonian, drives global business success. Outside of work, Maaz enjoys hiking, photography, and music, while Giridhara is passionate about sports, travel, and exploring political science and philosophy.