How we built SellerFuse's Amazon Ads and SP-API automation platform

SellerFuse is an Amazon-focused platform for agencies. We built the pipelines, dashboards and automation engine behind it: Ads API and SP-API data unified in one system, with bid, budget and dayparting automation on top.

Amazon marketplace · Agency tooling
Ongoing partnership
Amazon Ads
Amazon SP-API

Inside the build

Screens, flows and designs from the build.

5 images from the SellerFuse project. Select any image to see it larger.

SellerFuse dashboard with profit, sales, ROI and units sold on a laptop — **Profit and sales dashboard**Select an image to open the viewer, then use the arrow keys or swipe to move through all 5 images.

SellerFuse architecture flow diagram — **Architecture flow**Amazon Ads and SP-API data is extracted, cleaned, and unified into a single pipeline feeding real-time dashboards and automation rules.

High-fidelity SellerFuse screens around a laptop — **High-fidelity design**Inventory signals are connected to campaign data so bid and budget automation can react before ad spend is wasted on low-stock products.

SellerFuse repricing rules screen on a laptop — **Repricing rules**

SellerFuse rules detail screen on a laptop — **Rules in detail**

About the project

About SellerFuse.

SellerFuse enables Amazon agencies to centralize campaign data, automate optimization, and gain real-time insights through a unified analytics and automation platform.

SellerFuse is an Amazon-focused platform designed to help agencies manage advertising campaigns, inventory data, and performance insights in one place. As agencies scale, managing multiple client accounts across Amazon Ads, SP-API, and spreadsheets becomes complex and inefficient.

SellerFuse addresses this by providing a centralized system that combines data engineering, automation, and analytics. TechEsthete partnered with SellerFuse to build a scalable platform that turns fragmented data into actionable insights, enabling faster decision-making, improved campaign performance, and reduced operational overhead.

Client: SellerFuse
Industry: Amazon marketplace · Agency tooling
Engagement: Ongoing partnership
Services: Amazon Ads API, Amazon SP-API, Data engineering, Automation

The challenge

Amazon advertising data is highly fragmented and difficult to manage at scale. Agencies faced data spread across Amazon Ads, SP-API, and manual spreadsheets; time-consuming reporting processes delaying decision-making; difficulty optimizing campaigns in real-time; and lack of visibility into inventory and its impact on ads.
For growing agencies, this resulted in slower performance improvements and increased dependency on manual workflows.

What we built

TechEsthete designed and implemented a data-driven automation platform for SellerFuse.

Data Integration & Pipeline: built a centralized pipeline to extract, clean, and unify data from Amazon SP-API and Ads API.
Analytics Dashboard: developed real-time dashboards for tracking ACOS, ROAS, campaign performance, and inventory health.
Automation Engine: implemented automation for bid optimization, budget adjustments, and dayparting strategies.
Inventory-Aware Optimization: connected inventory data with campaigns to prevent wasted ad spend on low-stock products.

The result

Agencies manage Amazon campaigns and inventory from one system instead of scattered spreadsheets, cutting manual reporting time, speeding up optimization decisions, and scaling to more client accounts without growing the team.

What we worked on