Frequently Asked Questions

A Warehouse Management System (WMS) is software designed to coordinate and optimise daily warehouse operations, from receiving and put-away to picking, packing, and shipping.

For e-commerce businesses, a WMS delivers real-time inventory visibility across all sales channels, reduces picking errors, accelerates order fulfilment, and enables accurate stock forecasting. Without a WMS, businesses relying on spreadsheets or manual processes typically experience 1-3% error rates in order fulfilment, compared to under 0.1% with a properly implemented WMS.

A WMS becomes essential once you're processing more than 50-100 orders per day or managing inventory across multiple locations.

A WMS implementation typically takes 8-16 weeks depending on complexity. A straightforward single-warehouse setup can be live in 8-10 weeks. More complex implementations involving multiple warehouses or extensive integrations may take 12-16 weeks.

ERP implementations tend to take longer — typically 12-24 weeks — because they touch more business functions. The key phases are:

• Discovery and requirements (2-3 weeks)
• System configuration (3-6 weeks)
• Data migration (2-4 weeks)
• Testing and training (2-4 weeks)
• Go-live with support (1-2 weeks)

Rushing these phases is the single biggest cause of failed implementations.

1. Insufficient requirements gathering — not mapping current processes thoroughly before choosing a system
2. Poor data migration — importing inaccurate product data, stock levels, or supplier information
3. Skipping user acceptance testing — going live without thoroughly testing all workflows
4. Inadequate training — assuming staff will learn the new system on the job
5. Trying to replicate old processes — forcing the new system to work like the old one
6. Scope creep — adding requirements mid-implementation without adjusting timelines
7. Going live during peak season — always implement during quieter trading periods
8. No dedicated project owner — someone internal must champion the project day-to-day

An Enterprise Resource Planning (ERP) system consolidates all core business processes — finance, inventory, purchasing, sales, HR, and reporting — into a single unified system. While a WMS focuses specifically on warehouse operations (picking, packing, shipping, stock locations), an ERP manages the broader business.

Many e-commerce businesses use both: the ERP as the central business hub managing orders, finances, and purchasing, with the WMS handling the physical warehouse execution.

Popular ERP systems for e-commerce include Linnworks, SellerCloud, and Brightpearl, while WMS options include Peoplevox, SkuVault, and ShipHero.

The right choice depends on your primary need:

• PPeoplevox — a dedicated WMS ideal if your main challenge is warehouse efficiency, pick accuracy, and stock management. Excels at barcode scanning workflows and multi-location inventory.
• LLinnworks — a multichannel order management platform designed for centralised order processing, listing management, and basic warehouse functions across many marketplaces.
• SSellerCloud — a comprehensive e-commerce management platform developed for high-volume sellers requiring robust purchase order management, advanced reporting, and marketplace compliance tools.

Many businesses use a combination, such as Linnworks for channel management with Peoplevox for warehouse execution.

Costs vary based on the system, business complexity, and integration requirements:

Businesses typically see ROI within 6-12 months through reduced errors, lower labour costs, and improved order throughput.

Amazon Seller Fulfilled Prime (SFP) allows third-party sellers to display the Prime badge on their listings while fulfilling orders from their own warehouse, rather than using FBA.

To qualify, you must meet strict performance metrics:

• 99% on-time shipment rate
• Less than 0.5% cancellation rate
• Amazon-approved carriers with trackable two-day delivery
• Complete a trial period demonstrating consistent performance

The Prime badge typically delivers a 20-30% sales increase, with lower fulfilment costs than FBA and full control over your inventory and packaging.

System integration connects your different business software — sales channels, warehouse systems, accounting, shipping, and CRM — enabling them to share data automatically in real time.

Without integration, staff manually re-key orders, update stock levels across each marketplace individually, and reconcile financial data by hand. This is slow, error-prone, and doesn't scale.

With proper integration, an order placed on Amazon at 2am automatically flows to your WMS for picking at 7am, the shipping label is generated, tracking is sent to the customer, stock updates across all channels, and the transaction posts to your accounts — all without human intervention.

Yes, diagnosing and resolving failed implementations is a significant part of what we do. Common scenarios include:

• Systems partially implemented and never fully configured
• Integrations that keep breaking or losing data
• Staff reverting to manual workarounds
• Performance metrics deteriorating since go-live

In many cases, the system itself is capable — it just needs proper configuration, training, and process alignment. This is typically faster and more cost-effective than starting over.

An e-commerce operations consultant analyses, evaluates and strengthens the operational backbone of your online business. This includes:

• Analysing current warehouse processes and identifying inefficiencies
• Selecting and implementing the right WMS and ERP systems
• Integrating sales channels with back-office systems
• Streamlining order fulfilment workflows
• Setting up automated inventory management
• Training teams on new systems and processes

At eCom Clarity, Mark Gregory brings a proven track record spanning over 20 years of hands-on experience across dozens of UK e-commerce businesses.

Book a free initial consultation directly through our online booking page. Choose a convenient date and time for a 30-minute discovery call to understand your business, current challenges, and goals.

From there, we'll recommend next steps — whether that's a detailed operational audit, a specific system implementation project, or ongoing advisory support.

You can also reach us at mark@ecomclarity.co.uk or through our contact form.