Table of Contents
- What is order management?
- What does an order management system do?
- How an order management system works, step by step
- OMS vs IMS vs WMS vs TMS: what’s the difference?
- Benefits of using an OMS
- Do you actually need an OMS yet?
- Choosing the right OMS
- Or skip the software project: order management with a fulfilment partner
- FAQs
- The bottom line
Key takeaways
- An order management system (OMS) is software that tracks and coordinates every order from checkout to doorstep – and back again, if it’s returned.
- It centralises orders from all your sales channels, syncs stock, automates routine processing and keeps customers updated.
- An OMS is not the same as inventory, warehouse or shipping software – it’s the layer that connects them (comparison table below).
- Many small sellers don’t need a standalone OMS on day one; a fulfilment partner can provide much of the same capability built in.
Order management is a crucial part of any business that sells and ships products. It’s the process of tracking customer orders and managing every step involved in fulfilling them – often alongside e-commerce delivery solutions. As online selling grows, handling orders accurately and promptly is what keeps customers satisfied and operations efficient – and it gets harder with every new sales channel you add.
What is order management?
Order management is everything that happens to an order between “Buy Now” and a happy customer: receiving and verifying the order, checking stock, picking, packing and shipping it, keeping the customer updated, and handling any return or exchange afterwards. Done well, it’s invisible. Done badly, it’s late parcels, wrong items and refund requests.
What does an order management system do?
An order management system (OMS) is software that automates and coordinates that whole process. Rather than juggling marketplace dashboards, spreadsheets and courier portals, you get one platform where every order lives. Its key capabilities:
- Centralised order processing – orders from every sales channel managed in one queue, reducing errors and missed orders.
- Real-time inventory visibility – stock levels update with every sale, helping you avoid stockouts and overselling.
- Automated workflows – order verification, stock checks, fraud screening and shipment preparation happen without manual effort.
- Multi-channel integration – your website, marketplaces and physical sales feed the same system.
- Customer data and communication – purchase histories and automatic notifications at every stage.
- Analytics and reporting – performance data to spot trends and make better stocking and shipping decisions.
How an order management system works, step by step
Here’s the journey of a single order through an OMS:
- Order placed. A customer buys through any channel – your site, a marketplace, an app. The OMS captures the details centrally.
- Order processed. Details are verified, stock is confirmed, payment is checked, and suspicious transactions are flagged.
- Inventory updated. Sold items are deducted in real time across every channel; low stock can trigger reordering.
- Order fulfilled. The warehouse (or your fulfilment partner) receives pick instructions; items are picked, packed and labelled.
- Shipped and delivered. The OMS books the courier collection and sends the customer their tracking automatically.
- Returns handled. If something comes back, the OMS tracks it, updates stock and coordinates the refund or exchange.
- Post-purchase follow-up. Purchase history powers review requests, support and repeat-purchase offers.
In practice: a customer orders a gift set from your Shopify store at 9.04am; by 9.05 the order is verified and queued, the picker’s scanner shows its shelf location, the label prints with the best-rate courier pre-selected, and the customer has tracking before lunch. That’s the whole pitch of an OMS in one order.
OMS vs IMS vs WMS vs TMS: what’s the difference?
These four systems overlap and are easily confused. The short version:
| System | What it manages | Core question it answers |
| OMS – order management | The full order lifecycle across channels | “Where is every order, and what happens next?” |
| IMS – inventory management | Stock levels, reordering, forecasting | “What do we have, and when do we reorder?” |
| WMS – warehouse management | Picking, packing and warehouse layout | “What’s the fastest, most accurate way to dispatch?” |
| TMS – transport management | Courier selection, rates and tracking | “What’s the best way to ship this parcel?” |
Modern platforms blur these lines – many tools combine two or more – but the OMS is the connecting layer. For the bigger picture of how these systems work together, see our complete guide to digital fulfilment.
Benefits of using an OMS
- Efficiency – routine tasks run themselves, so the same team handles more orders.
- Accuracy – fewer human touches mean fewer wrong items and mis-typed addresses.
- Customer experience – faster dispatch and automatic updates build trust and repeat business.
- Scalability – peak-season volumes are absorbed by software, not late nights.
- Lower costs – fewer errors, less re-shipping and tighter stock control all protect margin.
One number that improves quickly with a good OMS: your order fulfilment rate.
Do you actually need an OMS yet?
Honest answer: not every business does. Run through this quick check:
Five-question check
☐ Do you sell on two or more channels (site + marketplace)?
☐ Have you oversold an item because stock was out of sync?
☐ Are you copying order details between systems by hand?
☐ Do “where’s my order?” emails take up real time each week?
☐ Did your last peak season stretch your process to breaking?
Two or more ticks – an OMS (or a fulfilment partner with one built in) will pay for itself. Mostly unticked – your platform’s built-in order tools are probably enough for now; revisit as volumes grow.
Choosing the right OMS
If the checklist says yes, weigh up your options against five factors:
- Business needs – order volumes, sales channels and what you need it to integrate with.
- Scalability – can it handle where you’ll be in two years, not just today?
- Ease of use – your team will live in this daily; demo it before you commit.
- Integration – confirm it connects cleanly with your store, accounts package and couriers.
- Cost – most OMS tools price by order volume or features, from free built-in platform tools to enterprise systems; map the pricing model to your growth plans.
Or skip the software project: order management with a fulfilment partner
Here’s the part most OMS guides won’t tell you: if you outsource fulfilment, much of the OMS’s job comes with the service. With Impact Express’s fulfilment services, your store connects directly to our systems – orders flow in automatically, stock visibility is real-time, tracking goes back to your customers without manual work, and returns are processed and restocked for you.
As a growing business, you gain access to enterprise-grade order management without the cost of purchasing, setting up and running your own platform — and because we operate as a DHL Authorised Service Partner, our domestic and international shipping services reach customers across the UK and beyond at prices few sellers could achieve on their own. Pair that with good inventory habits and your operation scales cleanly.
FAQs
Is an OMS the same as inventory management software?
No – inventory software manages stock levels and reordering, while an OMS manages the whole order lifecycle across channels. Many platforms combine both; the table above shows how the systems differ.
Do small businesses need an order management system?
Not always. A single-channel seller with modest volumes can manage with their platform’s built-in tools. The tipping point is usually multi-channel selling or volume growth – see the five-question check above.
How much does an OMS cost?
Anything from free (built into platforms like Shopify, for basic needs) to hundreds of pounds a month for dedicated multi-channel systems, typically priced by order volume. Factor in setup and integration time, not just the subscription.
Does Shopify have a built-in OMS?
Shopify includes solid built-in order management for its own channels; selling beyond Shopify (marketplaces, wholesale) is when sellers typically add a dedicated OMS or route orders through a fulfilment partner.
Can a fulfilment partner replace an OMS?
For many businesses, largely yes – order routing, stock visibility, tracking and returns come built into the partnership, with your store connected directly. Get in touch to see how that would work for your setup.
The bottom line
Order management is vital to any business that ships products, and an OMS is how growing sellers keep it accurate at scale: one system, every channel, every order tracked from checkout to doorstep. Whether you choose a standalone system or let a fulfilment partner provide it, the goal is the same – faster, error-free orders and customers who come back.
Ready to streamline yours? Contact us or get a free quote today.
