Warehouse fulfillment centers: How to balance speed, accuracy and cost-effectiveness

By Macy
06/10/2023 UTC.

Warehouse fulfillment centers are at the heart of the e-commerce supply chain. As online shopping continues to grow, businesses need to optimize their warehouse operations for speed, accuracy and efficiency. In this article, we will explore what warehouse fulfillment centers are, their different types and their roles. Readers also received tips on how to balance the key factors of speed, accuracy and cost-effectiveness in warehouse operations.

What is a warehouse fulfillment center?


A warehouse fulfillment center, also known as an order fulfillment center is a facility that handles order processing, packaging and shipping for e-commerce businesses. Fulfillment centers receive bulk inventory from vendors, break it down into individual orders and ship directly to customers.

A warehouse fulfillment center is a facility that handles order processing, packaging and shipping

Key activities performed at fulfillment centers include:

  1. Receiving and checking in inventory
  2. Storing inventory
  3. Picking and packing orders
  4. Shipping orders to customers
  5. Returns processing

Types of warehouse fulfillment centers

There are several types of fulfillment centers that offer different services:

  • Merchant fulfillment centers

These are fulfillment centers owned and operated by retailers to handle their own order fulfillment. Retailers maintain full control over warehouse operations, inventory and order delivery. However, owning a fulfillment center requires significant capital investment.

Merchant fulfillment centers make sense for large retailers with sufficient order volume. 

  • 3PL fulfillment centers

3PL stands for third-party logistics. 3PL fulfillment centers are run by logistics companies and handle fulfillment operations on behalf of multiple clients. Retailers can outsource fulfillment to reduce costs and focus on core business.

3PLs provide e-commerce order processing as a service with flexible contracts. This is a popular option for small and medium e-commerce businesses.

  • Micro fulfillment centers

These are small, automated fulfillment centers located close to urban areas to enable fast last-mile delivery. They specialize in speedy fulfillment of online grocery and food orders.

Micro fulfillment centers hold limited inventory but can quickly assemble orders for 1-2 hour delivery to customers. They help large retailers match the convenience of local small businesses.

The role of warehouse fulfillment centers

Warehouse fulfillment centers provide the critical link between inventory and customers in the e-commerce supply chain. Their key roles include:

  • Order processing: seamlessly handling a large volume of online orders from retailers
  • Inventory storage: safely storing sufficient stock to meet customer demand
  • Inventory management: tracking stock levels and reporting to clients
  • Order packing and shipping: efficiently assembling and packing individual orders to ship to customers
  • Returns management: inspecting, processing and restocking returned merchandise
  • Data and reporting: providing inventory and order data to retailers through warehouse management systems
  • Customer service: assisting with order inquiries, shipping updates, returns,...

Efficient fulfillment centers enable 24-48 hour delivery windows and free shipping that customers expect from online retailers. They are the execution arm for e-commerce sales.

Balancing speed, accuracy and cost in warehouse fulfillment centers

Warehouse fulfillment centers must optimize for speed, accuracy and cost-efficiency in their processes. Here are some key methods  to balance these factors:

  • Speed

    • Automation: Use automated storage and retrieval systems to accelerate order processing.
    • Streamlined processes: Simplify workflows, limit decision points and bottlenecks.
    • Proximity: Deploy micro-fulfillment centers close to customers for fast last-mile delivery.
    • Real-time data: Integrate order management and warehouse management systems for inventory visibility.

      Apply automated system is a smart solution to enhance productivity in the warehouse
  •  Accuracy

    • Worker training: Invest in skills development for pickers, packers and inventory specialists.
    • Quality assurance: Perform regular audits of fulfillment processes and shipped orders.
    • Inventory controls: Use barcode scanning, cycle counts to maintain accuracy.
    • Systems integration: Link warehouse management system with order data to avoid errors.
  • Cost-efficiency

    • Labor optimization: Balance staffing for peak and non-peak periods to control costs.
    • Slotting optimization: Organize inventory based on demand to optimize picker routes.
    • Performance metrics: Track key metrics like units processed per person hour to identify improvement areas.
    • Automation: Deploy automated storage and retrieval systems to reduce reliance on labor.
    • Lean processes: Eliminate redundancies and non value-add steps in fulfillment workflows.

By approaching fulfillment as a system and optimizing the components - warehouse layout, inventory, labor, automation and data integration - warehouses can improve across all three dimensions.

Benefits of outsourcing fulfillment

Many e-commerce businesses opt to outsource order fulfillment to a 3PL provider rather than run their own warehouse. Key benefits of outsourced fulfillment include:

Cost savings

  • 3PLs achieve economy of scale leading to lower fulfillment costs per order
  • Retailers convert fixed costs into predictable variable costs based on order volume
  • Avoid capital expenditure on warehouse infrastructure and systems

Operational efficiency

  • 3PLs have existing warehouse infrastructure, trained workers
  • They bring expertise in streamlining fulfillment workflows 
  • Retailers can leverage 3PL technology and best practices


  • Scale fulfillment up and down based on order volumes
  • Handle seasonal peaks without expanding fixed resources
  • Add or remove value added services on demand

Focus on core business

  • Retailers concentrate on sales, marketing and product development
  • Don't need to manage fulfillment workforce and operations

For small and mid-sized online businesses, outsourcing order fulfillment can make good business sense.

Why choose Ezbuy Japan for warehouse fulfillment service

At Ezbuy Japan, we pride ourselves on our technological prowess. Our state-of-the-art warehouse management software ensures that your inventory is managed with precision and accuracy. This means fewer errors, faster order processing, and happier customers.

But it's not just about technology; it's about people too. Our team of dedicated and professional staff is committed to providing you with top-notch service. We understand that your business is unique, and we tailor our fulfillment solutions to meet your specific needs.


Ezbuy has strengths in technology, ensuring a balance of speed, accuracy and cost efficiency.

How Ezbuy Japan balances cost, accuracy and effectiveness for your business 

Ezbuy Japan strikes a careful balance between cost, accuracy, and effectiveness to ensure that your business benefits in multiple ways:

  • Cost-efficiency: Ezbuy Japan understands the importance of cost control for businesses of all sizes. We offer competitive pricing structures and flexible fulfillment solutions that can be tailored to your specific needs. By optimizing our operations and leveraging technology, we help you reduce overhead costs associated with warehousing, labor, and shipping.
  • Accuracy: Accuracy is paramount in fulfillment, as it directly impacts customer satisfaction and your reputation. Our advanced warehouse management system and rigorous quality control processes ensure that orders are picked, packed, and shipped accurately. This minimizes costly errors, such as shipping the wrong products or incorrect quantities, which can lead to returns and customer complaints.
  • Effectiveness: Ezbuy Japan is committed to delivering effective fulfillment services that meet your business goals. We focus on streamlining processes and optimizing workflows to ensure that orders are processed quickly and efficiently. This means your customers receive their orders on time, enhancing their overall experience and loyalty to your brand.

By carefully managing these factors, Ezbuy Japan ensures that your business benefits from cost-effective, accurate, and efficient fulfillment services. We understand that each business is unique, and we work closely with you to tailor our solutions to your specific needs, helping you achieve your operational and financial objectives.


With Ezbuy Japan’s scale, infrastructure and e-commerce expertise, retailers can focus on sales and marketing while optimizing fulfillment. You benefit from our technology, network and buying power across Asia. 


In conclusion, Ezbuy Japan's fulfillment service is a reliable and cost-effective solution for businesses looking to streamline their order processing and inventory management in Japan. With our state-of-the-art warehouse facility in Japan, cutting-edge technology, and experienced team of professionals, we are able to provide accurate, fast, and scalable fulfillment services to our clients. 

By partnering with us, you can focus on growing your business while we take care of the rest. We are dedicated to providing exceptional customer service and helping our clients achieve their ecommerce goals. Our team is committed to ensuring that your orders are processed accurately, efficiently, and delivered on time. If you have any questions or would like to learn more about our services, please do not hesitate to connect us.  Contact us today to discuss how we can help you achieve your ecommerce fulfillment goals.