Prime Day is officially over, and the four-day event (July 8-11) was crowned a big success. Customers across the US saved billions in more than 35 product categories; and what’s now the longest Amazon Prime Day event in history introduced new features for shoppers that helped break sales records.
Brands that built and executed strategies and planned well ahead for Prime Day were more likely to find success. To prepare, these retailers created promotions, flash deals, and bundled offers to drive urgency and visibility. Behind the scenes, they worked closely with 3PLs and fulfillment partners to forecast demand and pre-position inventory to solidify accurate order processing during the surge.
As marketplaces continue to grow in importance as a sales channel, it’s critical for brands participating in these big events to use data insights and operational strategies to find success.
This post will cover what happened during Prime Day 2025, what data brands should analyze, and how to prepare for future Prime Day events.
Prime Day 2025 recap: What happened this year
Amazon rolled out several new features for Prime Day 2025, starting with extending the event from its typical two days to four. Beyond more time to shop, Prime Day also launched:
- Today’s big deals: Prime Day 2025 introduced daily, themed deal drops from top brands like Samsung, Levi’s, and Kiehl’s. These exclusive offers launched at midnight and were only available while supplies lasted.
- Prime for young adults: Members ages 18–24 were able to access a discounted Prime membership at 50% off. During Prime Day, they got 10% cash back on select categories, doubling their everyday rewards when combined with standard deals.
- Alexa+ deal tracking: Alexa+ helped Prime members track and score personalized deals. Shoppers could ask Alexa+ to monitor wish list items, notify them when prices dropped, or recommend top deals based on shopping habits.
Prime Day numbers
Despite early concerns that Prime Day wouldn’t perform as well, it ended up with sales records. Some of the top takeaways were:
- Online sales reached $7.9 billion in the first 24 hours.
- Spending for Prime Day surpassed Adobe’s estimate of $23.8 billion in sales and amounted to “more than two Black Fridays, which drove $10.8 billion in online spending during the 2024 holiday shopping season and sets a new benchmark for the summer shopping season,” Adobe said in a news release.
- 53.2% of shoppers made purchases on mobile devices, compared to on desktop computers, accounting for $12.8 billion of the spending, according to Adobe.
- During Prime Day 2025, consumers gravitated toward practical and seasonal essentials, with top-performing categories including kids’ apparel, home security, school supplies, and large appliances. Other standout categories were games, headphones and speakers, and car seats, all seeing sales spikes of over 140% compared to average daily sales in June.
Brands interested in performing well in Prime Day sales in October 2025 and July 2026 can research industry data and their own data if they participated in past Prime Days to learn what may work for them in the future.
What data should brands analyze (and learn from)?
From demand forecasting and returns to order accuracy rate, data gives retailers insights to improve products, sales, and the customer experience. Marketplaces, in particular, provide real-time, high-volume data, making them a treasure trove of insights into consumer behavior, pricing trends, and consumer demand.
And unlike traditional retail, brands can access more granular data, such as keyword performance, cart abandonment, and customer reviews. This information lets retailers better optimize promotions and inventory planning.
After events like Amazon Prime Day, sellers can look at a number of KPIs to both guide them in other Prime Days and their retail operations in general. They can learn from tracking the following key metrics.
Prime Day KPI table
| KPI Category | Key Metric | What It Tells You |
| Sales performance | Total sales volume | Overall consumer demand and scale of opportunity |
| Sales performance | Top-selling categories | Which categories are trending and driving volume |
| Sales performance | ASIN-level performance | Product-level insights including conversion, velocity, and price sensitivity |
| Sales performance | Buy Box win rate | Success in competitive visibility and control of the Buy Box |
| Inventory & supply chain | Stockouts & backorders | Where inventory fell short and potential lost revenue |
| Inventory & supply chain | Sell-through rate | How quickly inventory moved, helps with future forecasting |
| Inventory & supply chain | Inbound shipment timing | Whether you met FBA or 3PL delivery deadlines |
| Inventory & supply chain | Fulfillment performance | Order accuracy, delivery speed, and return rate under pressure |
| Pricing & promotions | Conversion rate changes | Effectiveness of timing and promotional strategy |
| Pricing & promotions | Deal success & pricing impact | Impact of discounting and value perception |
| Pricing & promotions | Ad spend ROI | Marketing efficiency and alignment with fulfillment performance |
| Customer behavior | Search trends | What consumers are searching for most during the event |
| Customer behavior | New vs. repeat buyers | Customer acquisition versus retention performance |
| Customer behavior | Cart abandonment rate | Issues with pricing, fulfillment, or product that led to drop-off |
| Marketplace & logistics | 3P vs. 1P sales share | Marketplace dominance and strategic channel allocation |
| Marketplace & logistics | Delivery window performance | Ability to meet fast shipping expectations |
| Marketplace & logistics | Return patterns | Returns volume and root cause of dissatisfaction |
How to prepare smarter for next Prime Day with your 3PL
Successful ecommerce operations rely on accurate and swift order fulfillment and a smooth post-purchase experience, especially during peak periods. A lot of skill, experience, and scalability go into performing well during sales surges.
Without the right 3PL provider, brands can find it difficult to have inventory where it needs to be and be able to navigate the complexities around marketplace fulfillment. With the right 3PL, brands can collaborate to:
Forecast inventory early
A 3PL can help brands model demand based on past performance. When equipped with the right technology and integrations, fulfillment providers ensure that clients have pertinent data and insights for better planning and decision-making, which is key to developing winning sales event strategies.
Avoid FBA pitfalls
FBA is complex, and if you don’t have the help of an expert 3PL, brands may be subjected to missed cutoffs or rising fees. A logistics provider that has the right experience gives brands the flexibility they need to navigate the challenges of omnichannel fulfillment and FBA inventory management.
Scale fulfillment without chaos
A fulfillment partner should be able to expand capacity and maintain SLAs, even during big events like Prime Day. Brands shouldn’t have to sacrifice speed, accuracy, operational support, or the customer experience when having a high volume of sales. A 3PL with the right infrastructure ensures that control and consistency remain through peak surges.
Use fulfillment data in real time
The ability to access fulfillment data in real time optimizes immediate operational adjustments. Think of it like this: if a product is nearing stockout, quick notification lets a brand pivot to restock, pause promotions, or reroute traffic to other SKUs, protecting revenue and the customer experience. The right 3PL and integrated data tools means sellers aren’t reacting to problems; they’re staying ahead of them.
Optimize bundles and prep work
Promotional kits, limited-time bundles, and custom packaging should be handled beforehand to avoid any Prime Day delays. A 3PL makes this process easier by assembling kits to spec, managing inventory for each component, and making sure everything is ready to ship on demand. For instance, if a beauty brand has an exclusive Prime Day skincare bundle, a fulfillment partner can pre-kit products in branded packaging to facilitate fast delivery and a stellar unboxing experience.
Plan for the return wave
When sales are high, returns are inevitable. A 3PL can manage reverse logistics efficiently while helping brands learn from returns data. Prime Day offers a great opportunity to explore the whys of returns before peak season, allowing for product, operational, and information improvements.
Prime Day is a performance test for your ecommerce operations; and your 3PL should be a key player in your success. Smart brands use what they learn this year to win bigger next time. Ready to optimize fulfillment before the next big event? Connect with an omnichannel fulfillment expert today.
