Strategy, Legal & Operations

Order processing explained: Steps, systems and best practices

Find out about order processing systems, workflows, and improvement strategies to become an order processing expert and grow your bottom line.

June 2, 202619 min read Share

This article was originally published in February 2025 but has been refreshed and re-published with new content.

Every business that sells products relies on order processing; the end-to-end system that ensures customers get what they ordered when they need it.

Whether you run a small e-commerce store, a B2B wholesaler, or a global retailer, getting orders from placement to delivery efficiently is crucial.

Order processing sits at the heart of your supply chain management: it’s what turns a customer’s purchase into a fulfilled commitment.

But it’s not always smooth sailing.

Order processing involves multiple steps, such as checking stock, picking and packing items, and arranging shipping, and if something goes wrong, delays, errors, and frustrated customers follow.

Bottlenecks in the process can cost businesses time and money, making it critical to have a system that works seamlessly.

Avoiding these issues starts with understanding the order processing cycle, common challenges, key metrics, and best practices to help you streamline operations and keep customers happy.

Key takeaways

• Order processing is the end-to-end workflow taking a customer order from placement to delivery, covering payment verification, inventory checks, picking, packing, and shipping.
• Order processing and order fulfillment aren’t the same; fulfillment covers the physical picking, packing, and shipping stage, while order processing encompasses the entire lifecycle.
• The four main methods are manual, automated, just-in-time, and real-time processing. Most businesses use a mix depending on order volume and fulfillment speed needs.
• A strong order processing system reduces errors, speeds up fulfillment, improves customer satisfaction, and enables growth without proportionally increasing headcount.
• The six steps in the order processing cycle are order placement, confirmation, inventory sourcing, picking and packing, shipping, and delivery and customer support.
• Key costs to track include labor, shipping, storage, technology, and returns handling. Breaking these out individually helps identify where inefficiencies are eroding margins.
• The most important metrics are order accuracy rate, cycle time, perfect order rate, fill rate, and return rate; tracking these consistently helps catch bottlenecks early.
• Automation is the biggest lever for improvement. Automating key tasks reduces cycle times, cuts errors, and helps businesses absorb volume spikes without adding staff.

Here’s what we’ll cover

What is order processing?    

Order processing is the step-by-step workflow that ensures a customer order is prepared and delivered quickly and accurately, from the moment a purchase is made through to inventory checks, picking and packing, shipping, and tracking.

Whether handled manually, semi-automated, or fully automated, the goal is always the same: to get the right product to the right customer on time.

Without an efficient order processing system, businesses risk lost inventory, shipping errors, and slow fulfillment, all of which impact revenue, customer satisfaction, and long-term trust.

That’s why having a structured, scalable approach to your order processing system is essential for sustainable growth.

What is the difference between order processing and order fulfillment?

Order processing is the full end-to-end workflow that takes a customer order from placement through to delivery. Order fulfillment refers specifically to the physical stage within that workflow—the picking, packing, shipping, and delivery of the product to the customer.

Order processing and order fulfillment are closely related concepts, with fulfillment sitting inside the broader order processing workflow.

Order processing covers the entire journey: from the moment a customer places an order—including the administrative steps like verifying payment, updating inventory, and confirming that order details are correct—through to the physical execution of getting the product to their door.

Order fulfillment refers to that physical execution stage of preparing and delivering the product, including picking, packing, and shipping.

In practice, these stages are tightly connected and often overlap. Many businesses treat fulfillment as part of the overall order processing workflow, especially when managing the full lifecycle from purchase through to delivery.

Order processing examples

To see order processing in action, let’s look at how real businesses have optimized their workflows to improve efficiency and customer satisfaction.

Salient Medical Solutions: Eliminating manual order processing at scale

Salient Medical Solutions, a US-based medical device distributor, was struggling with manual order processing that led to errors, customer dissatisfaction, and limited scalability.

By using Sage 300 to automate orders, optimize inventory, and streamline financials, the company transformed its operations.

Efficiency improved by 200%, 38 hours of manual work were eliminated each week, and revenue grew by 250% without a proportional increase in headcount.

As CFO Lydia Potter notes: “We can grow the business at unlimited scale without adding a lot of staff because we’re not doing anything manually.”

Decathlon (UK): Scaling up for demand

Decathlon, a major sporting goods retailer, needed a faster way to fulfill thousands of online orders each day.

To streamline their order processing, they installed a three-story mezzanine with nearly 2,000 shelving units at their logistics center.

This upgrade allowed them to process around 3,000 online orders daily, improving order accuracy and reducing shipping delays.

Motocard: Speeding up fulfillment

Motocard, a Spanish motorcycle gear retailer, faced challenges keeping up with a growing number of online orders.

By integrating a Warehouse Management System (WMS) and reorganizing their storage with picking shelves, they improved their order processing efficiency.

The result was 900 orders processed per day, with 90% of orders placed before noon dispatched the same day.

SAM Outillage: Automating for efficiency

SAM Outillage, a French tool manufacturer, struggled with slow order fulfillment due to outdated logistics processes.

To fix this, they automated their order processing system, introducing a mini-load system and WMS. The impact was immediate: a 25% boost in productivity and 24-hour order fulfillment for orders placed before 4 p.m.

Each of these businesses tackled order processing challenges in different ways, whether through automation, better storage solutions, or smarter logistics.

How does sales order processing differ between B2B and B2C businesses?

B2C order processing is typically straightforward, with a single customer placing a single order. B2B sales order processing, on the other hand, often involves wholesale or enterprise contexts where orders are more complex, including purchase orders, credit terms, multi-location fulfillment, and contracts.

Let’s take a closer look at these factors:

• Purchase Orders (POs): the buyer issues a formal PO before the seller processes the order, adding an approval and verification step.
• Credit terms: orders may be fulfilled before payment is received, requiring credit checks and accounts receivable management.
• Multi-location fulfillment: a single sales order may need to be split across multiple warehouses or distribution centers.
• Custom pricing and contracts: enterprise customers often have negotiated pricing, requiring the system to reference contract terms before confirming the order.

For businesses operating in both B2B and B2C channels, managing these two types of order processing within a unified order management system is a key operational challenge—and a core reason why scalable order processing software matters.

What are the main methods of order processing?

The main methods of order processing are manual, automated, just-in-time, and real-time order processing.

The right method for a particular business depends on its order volume, system maturity, and fulfillment speed needs.

Fully manual workflows may work for low-volume operations, while automated, real-time systems are designed for scale.

Manual order processing

Manual order processing is a traditional approach where staff record orders, update inventory, and arrange shipments by hand.

It works for small businesses with low order volumes but is prone to errors and delays.

Automated order processing

Automation reduces manual effort by handling order entry, inventory updates, and shipping logistics.

With WMS, barcode scanners, and AI-driven software, businesses can process orders faster and more accurately.

Just-in-Time (JIT) order processing

JIT processing focuses on minimizing excess stock by processing orders only when needed. While this approach reduces storage costs, any supply chain disruption can cause order delays.

Real-time order processing

Real-time processing provides instant updates on order statuses, inventory levels, and shipping progress.

Industries like e-commerce, food delivery, and subscription services rely on this approach for speed and accuracy.

Every business needs a solid order processing system, and many use a mix of these methods to get the best results.

Why is a good order processing system important?

A well-designed order processing system reduces errors, speeds up fulfillment, improves customer satisfaction, and gives businesses real-time visibility into inventory and order status. For growing businesses, it’s also the foundation that makes it possible to scale operations without proportionally increasing headcount.

A strong order processing system keeps your business running smoothly by delivering:

• Happier customers: orders that arrive on time and without mistakes build trust and encourage repeat business.
• Lower costs: streamlining order processing reduces manual work, errors, and unnecessary expenses.
• Better inventory control: real-time tracking helps prevent stockouts and overordering.
• Smarter decision-making: insights from order data allow for better forecasting and planning.
• A competitive edge: businesses that fulfill orders quickly and accurately stand out.

Advantages and disadvantages of order processing systems

Investing in a dedicated order processing system offers significant operational benefits, but it’s important to weigh these against the challenges, particularly for smaller businesses.

The key advantages are:

• Accuracy: automated systems reduce the risk of human error in picking, packing, and shipping, minimizing costly returns and customer complaints.
• Speed: automated order routing and real-time inventory updates dramatically reduce order cycle times.
• Scalability: a well-configured system can handle significant volume increases (during seasonal peaks, for example) without requiring proportional increases in staff.
• Visibility: real-time dashboards give operations, sales, and finance teams a shared view of order status, inventory levels, and fulfillment performance.
• Cost reduction: over time, automation reduces labor costs associated with manual order entry, error correction, and returns handling.

Potential disadvantages to keep in mind are:

• Implementation cost: enterprise-grade order processing systems require an up-front investment in software, integration, and staff training.
• Complexity for smaller teams: feature-rich systems can be overwhelming for micro-businesses or sole traders who don’t need advanced functionality.
• Integration risk: connecting an order processing system to existing Enterprise Resource Planning (ERP), accounting, and logistics platforms introduces technical complexity and potential points of failure.
• Over-automation risk: fully automated systems can struggle with exceptions that require human judgment, like unusual orders or custom requests.

For most growing businesses, the benefits outweigh the drawbacks, but matching the system’s complexity to your actual operational needs is essential.

What are the steps in the order processing cycle?

There are six key steps in the order processing cycle: order placement, order confirmation, inventory sourcing, picking and packing, shipping, and delivery and customer support. In many businesses, this cycle includes fulfillment activities like shipping and delivery as part of the end-to-end order processing workflow.

1. Order placement

Order processing starts when a customer places an order, whether online, over the phone, or in-store.

Your order processing system captures the details, including what they bought, how much, and where it needs to go.

2. Order confirmation

Once an order comes in, you need to confirm the product is in stock, process payment, and verify customer details.

At this stage, customers usually get an email with their order number and an estimated delivery date.

3. Inventory sourcing

Your order processing system then locates the products in a warehouse or fulfillment center. If something is out of stock, you might source it from another location or put the order on backorder.

4. Picking and packing

Now, it’s time to grab the right items and pack them up for shipping.

Whether your team is handling this manually or using automation, efficiency at this stage reduces errors and ensures orders arrive in good condition.

5. Shipping

Once packed, the order is handed off to a carrier.

The order processing system generates a shipping label, and tracking details are sent to the customer so they can follow their package’s journey.

6. Delivery and customer support

The order arrives at the customer’s door.

If there’s a problem like a damaged item or a return request, your customer support team steps in to help. A smooth post-purchase experience builds trust and keeps customers coming back.

How does order processing fit into supply chain management?

Within the supply chain, order processing sits between demand generation (sales and marketing) and fulfillment logistics (warehousing, shipping, and last-mile delivery). It acts as the operational bridge that converts customer demand into physical action.

Effective order processing in supply chain management depends on tight integration across several functions:

• Inventory management: real-time stock visibility ensures orders can be confirmed and fulfilled without delay.
• Procurement: for make-to-order businesses, a confirmed customer order may trigger a purchase order to suppliers, meaning order processing directly influences upstream supply chain activity.
• Warehouse management: picking strategies, storage layouts, and staffing levels in the warehouse are all shaped by order processing volumes and patterns.
• ERP integration: Enterprise Resource Planning (ERP) systems consolidate order processing data with finance, inventory, and logistics, giving leadership a unified view of supply chain performance.

Together, these integrations position order processing as a central coordination point within supply chain management.

What factors can impact the order processing cycle?

The most common factors affecting order processing speed and accuracy include product complexity, order volume fluctuations, inventory accuracy, workforce efficiency, and shipping and logistics reliability.

Understanding these factors helps businesses identify where bottlenecks are most likely to occur and helps you stay ahead and keep orders moving.

Type of products

Some products are easier to process than others.

Perishable goods, fragile items, or oversized shipments often need special handling, which can slow things down.

Digital products and small, durable items tend to move through the system faster.

Order volume and seasonality

Processing a handful of orders a day is very different from handling a seasonal rush.

Sales spikes, whether from holidays, promotions, or sudden demand, can overwhelm your system if you’re not prepared.

Without the right processes in place, businesses can struggle to keep up, leading to missed deadlines and frustrated customers.

Inventory management

Orders can’t be processed if the stock isn’t there. Poor inventory tracking leads to stockouts, delays, and even cancellations.

On the other hand, holding too much inventory ties up cash and warehouse space.

A real-time inventory management system helps you keep the right balance and ensures products are available when needed.

Workforce efficiency

Even with the best systems in place, order processing relies on people.

A well-trained team can keep things running smoothly, while understaffing, slow workflows, or a lack of automation can cause delays.

Investing in training, technology, and efficient processes helps businesses stay on top of orders.

Shipping and logistics

Getting an order out the door is one thing—getting it to the customer on time is another.

Delays with couriers, supply chain disruptions, or inefficient shipping processes can all slow down fulfillment.

Working with reliable carriers and optimizing shipping methods can help minimize these issues.

What are the costs of order processing?

Labor, storage space, software, and shipping costs all contribute to the total cost of order processing.

Understanding these costs helps businesses identify where to invest in improvements and where inefficiencies are eroding margins.

• Labor: picking, packing, quality checking, and handling returns all require staff time. Labor is typically the largest variable cost in order processing, particularly for businesses with high order volumes.
• Shipping and handling: carrier fees, packaging materials, and dimensional weight charges add up quickly, and errors that cause reshipments compound these costs significantly.
• Inventory storage: holding stock in a warehouse or fulfillment center carries fixed costs (rent, utilities, security) and variable costs (handling, insurance). Overstocking increases these costs; understocking leads to missed orders.
• Technology: order management software, WMS platforms, and ERP integration all involve licensing fees, implementation costs, and ongoing maintenance.
• Returns handling: processing returned items (inspecting, restocking, and/or disposing of them) adds a cost layer that is often underestimated. According to the National Retail Federation, return rates for US e-commerce orders average nearly 20%, making returns management a significant operational cost.

Tracking these costs individually, rather than treating order processing as a single overhead line, gives businesses the data they need to prioritize improvements effectively.

What are the most important order processing metrics?     

The most important order processing metrics are order accuracy rate, order cycle time, perfect order rate, order fill rate, and return rate.

Tracking these KPIs consistently gives businesses the data needed to identify bottlenecks and benchmark performance over time.

Order accuracy rate

This measures the percentage of orders fulfilled without errors.

High accuracy means customers receive exactly what they ordered, leading to increased satisfaction.

Errors can result in returns, additional shipping costs, and potential loss of customer trust.

How to calculate order accuracy rate:

The formula for order accuracy rate is:

(Number of error-free orders ÷ Total number of orders) × 100

A rate below 95% typically signals a systemic issue in picking, packing, or order entry worth investigating.

Order cycle time

This metric tracks the average time it takes to process an order from placement to delivery.

Shorter cycle times indicate a more efficient process, which can enhance customer satisfaction and reduce operational costs.

How to calculate order cycle time:

The formula for order cycle time is:

Total processing time for all orders ÷ Number of orders

Monitoring this over time helps identify whether process changes, like new software, warehouse reorganization, or additional staff, are having a measurable impact on speed.

Perfect order rate

This combines several factors, including accurate orders, on-time delivery, and undamaged goods, to assess the overall efficiency of your order processing.

A high perfect order rate reflects well on your entire supply chain.

How to calculate perfect order rate:

The formula for perfect order rate is:

(Number of perfect orders ÷ Total number of orders) × 100

Most businesses target 90%+ here; anything below 80% suggests multiple compounding issues across the fulfillment chain.

Order fill rate

Order fill rate measures the percentage of customer orders that are fulfilled completely from available stock without backorders or delays.

A high fill rate indicates effective inventory management and the ability to meet customer demand promptly.

How to calculate order fill rate:

The formula for order fill rate is:

(Number of orders fulfilled without backorders ÷ Total number of orders) × 100

A consistently low fill rate points to inventory planning problems rather than order processing failures, which is useful for identifying where the real bottleneck sits.

Return rate

This tracks the percentage of orders that customers return.

Monitoring return rates can help identify issues with product quality, descriptions, or fulfillment accuracy.

How to calculate return rate:

The formula for return rate is:

(Number of returned orders ÷ Total number of orders) × 100

The average US e-commerce return rate, around 20%, is a useful industry benchmark when assessing your own performance.

How can you improve order processing?

The most effective ways to improve order processing are automating repetitive tasks, maintaining accurate inventory levels, optimizing warehouse organization, improving demand forecasting, and tracking performance metrics consistently.

Even incremental improvements in each area compound into significant gains in speed, accuracy, and cost efficiency.

Here are some effective strategies to consider:

Automate where possible

Manual processes slow things down and increase the risk of errors.

Automating tasks like order entry, inventory tracking, picking, and shipping ensures faster fulfillment and fewer mistakes.

Integrated systems can also sync real-time data across departments, reducing miscommunication.

The operational gains can be significant: in one case cited by McKinsey, a global logistics company that integrated automated robots into its picking process achieved a 200% increase in picking productivity and a 50% reduction in cycle time, contributing to a near zero-defect fulfillment environment.

Keep inventory levels accurate

You can’t process orders efficiently if stock levels are wrong.

A real-time inventory management system prevents stockouts and overstocking, helping you balance supply with demand.

Barcode scanning and automated tracking can make inventory updates seamless.

Optimize warehouse organization

A well-structured warehouse makes picking and packing much faster.

Grouping high-demand items together, clearly labeling sections, and using efficient storage layouts help reduce retrieval time.

Investing in a WMS can also optimize inventory placement and movement.

Improve demand forecasting

Knowing what customers will need before they order helps you avoid supply issues.

Using sales data, seasonal trends, and predictive analytics allows you to maintain optimal stock levels and plan for busy periods.

Streamline internal communication

Breakdowns in communication lead to delays and errors.

Ensure that all teams—sales, fulfillment, inventory, and customer support—have real-time access to order status updates.

Internal dashboards, automated alerts, and regular check-ins help keep everyone aligned.

Train and upskill staff

Even the best systems won’t work well if employees aren’t trained to use them properly.

Invest in ongoing training so your team understands workflows, uses automation effectively, and can troubleshoot issues as they arise.

Offer partial order fulfillment

Sometimes, sending part of an order right away is better than waiting for all items to be available.

If stock is limited, consider shipping what’s ready first and sending the rest later to keep customers satisfied.

Improve customer communication

Keeping customers informed reduces frustration and builds trust.

Automated email or SMS updates for order confirmations, shipping status, and delays help manage expectations and improve the buying experience.

Use mobile picking and barcode scanning

Equip warehouse teams with mobile devices for barcode scanning to speed up picking and reduce mistakes.

Scanning ensures the right items are packed, minimizing returns and fulfillment errors.

Regularly review performance metrics

Tracking key metrics like order accuracy, fulfillment time, and return rates helps pinpoint inefficiencies.

Reviewing this data regularly allows businesses to adjust processes, eliminate bottlenecks, and continuously improve order processing.

Order processing made easy with Sage

Many of the challenges of order processing can be significantly reduced with the right software in place.

If you’re looking to reduce manual workload, improve order accuracy, or scale operations more efficiently, explore order management software from Sage.

It can help you automate key workflows like order tracking, stock updates, and fulfillment routing, giving your team real-time visibility from placement to delivery and more time to focus on work that matters.

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