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As order volume surged, Rush Order Tees turned to ShipStation API to power high-volume fulfillment without slowing down. Automation reduced shipping errors by 30% and eliminated 25+ labor hours per day across shifts. Today, the company ships at enterprise scale with speed, accuracy, and confidence—even during peak demand.
For over two decades, Rush Order Tees has been printing custom apparel for customers nationwide—t-shirts, hoodies, hats, and specialty items, spanning a catalog of over 3,000 products. Today, the company fulfills millions of orders annually, shipping thousands of packages every single day.
That kind of volume demands more than good intentions—it takes a shipping operation that can match the pace of a production floor running full tilt.
“Our goal is to maintain industry-leading turnaround times and accuracy,” said CEO Mike Nemeroff. “Our shipping needs focus on reliability, automation, lower error rates, and intelligent label generation across multiple carriers.”
For years, ShipStation API has been at the core of how Rush Order Tees makes that happen.
Before ShipStation API, shipping at Rush Order Tees was a patchwork—manual label creation here, partial automations there, and disconnected carrier tools everywhere. It worked until the orders started stacking up faster than the team could print labels.
“All of that created inconsistencies, more errors, and slower daily throughput,” Nemeroff explained.
The turning point was simple: growth. Order volume kept climbing, but the semi-manual processes couldn’t keep pace. Speed suffered. Errors crept in. And adding headcount wasn’t a sustainable solution.
“We needed a scalable API-driven system that could grow with us,” Nemeroff said.
Rush Order Tees needed an API that could handle batch processing and multi-carrier rate shopping for thousands of daily shipments without flinching. Real-time syncing. Automation rules that didn’t require babysitting. And crucially, support for massive daily volume without the system grinding to a halt.
ShipStation API checked every box.
“ShipStation API centralized and automated our entire shipping workflow—batch label creation, carrier rate optimization, status syncing, and error-reduction checks. It enabled consistent, high-volume throughput while reducing labor cost per shipment.”Mike Nemeroff, CEO
“ShipStation API centralized and automated our entire shipping workflow—batch label creation, carrier rate optimization, status syncing, and error-reduction checks. It enabled consistent, high-volume throughput while reducing labor cost per shipment.”
Rush Order Tees doesn’t operate like a typical ecommerce business. Custom apparel production involves internal routing systems, order staging, and coordinated workflows across facilities. Any shipping solution would need to integrate directly with those existing systems.
“We connected our internal production-routing and order-staging systems directly to ShipStation API to automate label creation, shipping notifications, and inventory movement according to our production workflow,” Nemeroff explained.
The integration was smooth. Rush Order Tees completed the core implementation within a few weeks, with incremental improvements added afterward as needs expanded.
Shipping custom apparel means customers are often eagerly tracking their order—they’ve got an event, a team, a deadline. Rush Order Tees paired Klaviyo, an email and SMS marketing platform, with ShipStation’s API to ensure customers never have to wonder where their packages are.
“It automatically triggers precise, real-time shipping and delivery notifications,” Nemeroff said. “That improves customer experience and increases post-purchase engagement.”
Because ShipStation’s API feeds shipment data directly into Klaviyo, Rush Order Tees can customize those touchpoints—branded emails, SMS alerts, delivery confirmations—without building any of it from scratch.
The impact of ShipStation API wasn’t incremental—it was transformational.
“Automation eliminated thousands of manual actions per day, freeing our team to focus on production and quality rather than repetitive shipping tasks.”Mike Nemeroff, CEO
“Automation eliminated thousands of manual actions per day, freeing our team to focus on production and quality rather than repetitive shipping tasks.”
Here’s what changed:
For Rush Order Tees, those efficiency gains translate directly to better margins and a more consistent customer experience. API-driven automation improved rate selection while reducing the labor hours spent on shipping tasks—lowering the cost per order.
Custom apparel demand isn’t steady. Holiday seasons, university rushes, and seasonal promotions create massive order spikes that can overwhelm unprepared fulfillment operations.
“ShipStation API has allowed us to process massive spikes without operational strain,” Nemeroff said. “Batch automation and stable API throughput are essential to keeping up with demand.”
That scalability during peak periods—without additional headcount—has been one of the company’s biggest wins.
Rush Order Tees has also streamlined multi-facility shipping logic, improved carrier selection accuracy, and scaled to significantly higher daily package counts—all without adding staff.
When asked to describe ShipStation API’s impact in a single sentence, Nemeroff didn’t hesitate.
“ShipStation API gives us the scalability, automation, and reliability needed to ship at enterprise volume without slowing down,” he said.
Ready to scale your shipping without scaling your team?
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As order volume grew, Rush Order Tees' mix of manual label creation and fragmented carrier tools became a bottleneck that threatened speed and accuracy.