The complete guide to inventory management
Inventory sits at the intersection of cash flow, customer experience, and operational discipline. This guide covers the types, methods, and systems that separate resilient businesses from reactive ones.
What you need to know
Inventory management is end-to-end
Sourcing, storing, and selling — from raw materials through to finished goods in the customer's hands.
Turnover ratio is the headline KPI
Measures how fast goods are purchased, used, and sold — your primary supply-chain health signal.
Good systems compound
Better planning, faster delivery, lower costs, higher efficiency, and stronger trust reinforce each other.
Failure modes are predictable
Shrinkage, deadstock, stockouts, demand swings, and poor warehouse layout — each solvable with the right tools.
What is inventory management?
Inventory management is the process of controlling inventory at every lifecycle stage — from sourcing, through storage, to the point of sale. The core purpose: ensure you have the right amount of stock, at the right time, at the right cost.
Satisfied customers and market demand depend on accurate inventory counts. For product-focused businesses, the bottom line depends on systematic, transparent inventory management. Businesses use metrics like inventory turnover ratio to judge how well their systems perform.
Lost globally each year to inventory distortion — the gap between the stock you think you have and what's actually available to sell.
The language of inventory
The types you'll manage inside Cin7 Core. Most businesses touch at least five of these daily.
Raw Materials
Parts and components that make up finished products — the starting point of every BOM.
Work-in-Process
Goods partway through production — no longer raw, not yet finished. The hardest to count accurately.
Finished Goods
Completed product ready to sell — the stock that drives revenue and sits closest to the customer.
Transit Inventory
Stock moving between locations — from supplier to warehouse, or warehouse to store.
Safety Stock
Extra inventory to absorb demand spikes or supplier delays. Insurance against stockouts.
Anticipation Stock
Built up ahead of expected surges — seasonal peaks, promotions, or known supplier shutdowns.
Benefits & challenges, side by side
Benefits
- Better planning & forecastingDistinguish well-performers from shelf-eaters; improve cash flow.
- Faster delivery timesFewer mistakes, faster fulfilment, happier customers.
- Reduced inventory costAccurate reorder points lower backstock and storage overhead.
- Increased efficiencySystematic tracking frees your team from firefighting.
- Stronger trustDependable data across manufacturers, employees and customers.
Challenges
- Inventory shrinkageTheft, damage, vendor error — unexplained stock loss eroding margin.
- DeadstockInventory that never sells, tying up cash and warehouse space.
- StockoutsRunning out when customers want it — costs revenue and trust.
- Demand changesSudden shifts leaving you over- or under-stocked.
- Poor warehouse layoutInefficient picking flows that inflate labour cost.
The inventory management process
Many businesses still rely on spreadsheets long after they've outgrown them. Between time lost to manual reconciliation and human error, spreadsheet-based inventory becomes a drag on growth before anyone raises a flag.
How a modern system works
An automated platform like Cin7 Core provides real-time visibility into inventory — improving your supply chain, keeping customers happy, and minimising stock loss. Back-end management across multiple channels, locations, and currencies, with automation stitching the operation together.
Inventory management methods
No one-size-fits-all. The right method depends on your product mix and how your operation runs.
ABC Analysis
The 80/20 rule: separate inventory into three categories by revenue contribution.
Demand Forecasting
Predict future demand based on historical data and trends.
EOQ
Economic Order Quantity — minimise capital locked in stock.
FSN Inventory
Fast, Slow, Non-moving — separate by consumption rate.
FIFO
First-in-first-out: oldest stock sold first. Most common method.
LIFO
Last-in-first-out: different tax and reporting implications.
Just-in-Time
Inventory arrives to meet demand without holding excess.
Perpetual
Continuous tracking as stock moves — default for modern software.
Periodic
Monitor at fixed intervals rather than after every transaction.
Two-Bin Control
When bin one empties, it triggers replenishment. Simple and visual.
VMI
Vendor-Managed Inventory: supplier maintains agreed stock levels.
What good inventory software does
The best software gives you visibility into stock levels, connects every sales channel, and automates reorder processes — streamlining procurement, production, reporting, forecasting, and fulfilment in one place.
Features that matter
- Inventory tracking — barcode scanning for purchase, storage, and movement
- Supplier management — auto-fill POs, visible purchase history
- POS & eCommerce integration — single source of truth across channels
- Procurement automation — low-stock alerts and reorder points
- Reporting — turnover rate, COGS, inventory value, stock age
- Usability — ease of use and support quality matter more than feature count
Why automation pays back quickly
- Real-time data — always know what's available and where
- Fewer errors — reliable software beats reliable people at scale
- Efficiency — bird's-eye and detailed views in one place
- Forecasting — spot trends and order accordingly
- Scale support — stock alerts and asset tracking grow with you
- Reduced cost — less deadstock, fewer stockouts, lower overhead
Five steps to manage inventory well
A practical sequence for moving from reactive to reliable.
Keep safety stock
Stocking to average demand leaves no margin for a good week. Safety stock absorbs variability in both demand and supply.
Emphasise merchandise planning
Strategic stocking, pricing, and display lifts ROI — lowering unwanted inventory, labour costs, and obsolescence.
Track your products
A single item should be traceable from raw material order through to delivery. Define ownership and method at each stage.
Invest in automation
Replace spreadsheets with connected inventory performance. Cloud-based tools update stock after every transaction and fire alerts before stockouts bite.
Audit regularly
Even with great software, physical counts matter. Annual, biannual, or quarterly reviews combined with spot checks catch drift before it gets expensive.
Frequently asked
What does "inventory management" mean?
The tools and methods used to track goods from raw materials at the manufacturer through to point of sale.
What are the four types of inventory?
Raw materials, work-in-process, MRO (maintenance/repair/operations), and finished goods.
How do you reduce inventory costs?
Automate management, centralise stock, set reorder points, eliminate deadstock, stop overstocking on gut feel.
What's the 80/20 rule in inventory?
~20% of your inventory drives ~80% of sales. Also called the Pareto Principle.
Can you use Excel for inventory?
You can — most businesses outgrow it fast. Manual, time-consuming, and introduces error at scale.
Why use inventory software?
Automate tasks, reduce error, integrate with eCommerce, POS, and accounting so everything speaks the same language.
Ready to manage inventory more efficiently?
See how Cin7 Core fits your operation. Book a walkthrough with a certified partner.
The complete guide to inventory management
Inventory sits at the intersection of cash flow, customer experience, and operational discipline. This guide covers the types, methods, and systems that separate resilient businesses from reactive ones.
What you need to know
Inventory management is end-to-end
Sourcing, storing, and selling — from raw materials through to finished goods in the customer's hands.
Turnover ratio is the headline KPI
Measures how fast goods are purchased, used, and sold — your primary supply-chain health signal.
Good systems compound
Better planning, faster delivery, lower costs, higher efficiency, and stronger trust reinforce each other.
Failure modes are predictable
Shrinkage, deadstock, stockouts, demand swings, and poor warehouse layout — each solvable with the right tools.
What is inventory management?
Inventory management is the process of controlling inventory at every lifecycle stage — from sourcing, through storage, to the point of sale. The core purpose: ensure you have the right amount of stock, at the right time, at the right cost.
Satisfied customers and market demand depend on accurate inventory counts. For product-focused businesses, the bottom line depends on systematic, transparent inventory management. Businesses use metrics like inventory turnover ratio to judge how well their systems perform.
Lost globally each year to inventory distortion — the gap between the stock you think you have and what's actually available to sell.
The language of inventory
The types you'll manage inside Cin7 Core. Most businesses touch at least five of these daily.
Raw Materials
Parts and components that make up finished products — the starting point of every BOM.
Work-in-Process
Goods partway through production — no longer raw, not yet finished. The hardest to count accurately.
Finished Goods
Completed product ready to sell — the stock that drives revenue and sits closest to the customer.
Transit Inventory
Stock moving between locations — from supplier to warehouse, or warehouse to store.
Safety Stock
Extra inventory to absorb demand spikes or supplier delays. Insurance against stockouts.
Anticipation Stock
Built up ahead of expected surges — seasonal peaks, promotions, or known supplier shutdowns.
Benefits & challenges, side by side
Benefits
- Better planning & forecastingDistinguish well-performers from shelf-eaters; improve cash flow.
- Faster delivery timesFewer mistakes, faster fulfilment, happier customers.
- Reduced inventory costAccurate reorder points lower backstock and storage overhead.
- Increased efficiencySystematic tracking frees your team from firefighting.
- Stronger trustDependable data across manufacturers, employees and customers.
Challenges
- Inventory shrinkageTheft, damage, vendor error — unexplained stock loss eroding margin.
- DeadstockInventory that never sells, tying up cash and warehouse space.
- StockoutsRunning out when customers want it — costs revenue and trust.
- Demand changesSudden shifts leaving you over- or under-stocked.
- Poor warehouse layoutInefficient picking flows that inflate labour cost.
The inventory management process
Many businesses still rely on spreadsheets long after they've outgrown them. Between time lost to manual reconciliation and human error, spreadsheet-based inventory becomes a drag on growth before anyone raises a flag.
How a modern system works
An automated platform like Cin7 Core provides real-time visibility into inventory — improving your supply chain, keeping customers happy, and minimising stock loss. Back-end management across multiple channels, locations, and currencies, with automation stitching the operation together.
Inventory management methods
No one-size-fits-all. The right method depends on your product mix and how your operation runs.
ABC Analysis
The 80/20 rule: separate inventory into three categories by revenue contribution.
Demand Forecasting
Predict future demand based on historical data and trends.
EOQ
Economic Order Quantity — minimise capital locked in stock.
FSN Inventory
Fast, Slow, Non-moving — separate by consumption rate.
FIFO
First-in-first-out: oldest stock sold first. Most common method.
LIFO
Last-in-first-out: different tax and reporting implications.
Just-in-Time
Inventory arrives to meet demand without holding excess.
Perpetual
Continuous tracking as stock moves — default for modern software.
Periodic
Monitor at fixed intervals rather than after every transaction.
Two-Bin Control
When bin one empties, it triggers replenishment. Simple and visual.
VMI
Vendor-Managed Inventory: supplier maintains agreed stock levels.
What good inventory software does
The best software gives you visibility into stock levels, connects every sales channel, and automates reorder processes — streamlining procurement, production, reporting, forecasting, and fulfilment in one place.
Features that matter
- Inventory tracking — barcode scanning for purchase, storage, and movement
- Supplier management — auto-fill POs, visible purchase history
- POS & eCommerce integration — single source of truth across channels
- Procurement automation — low-stock alerts and reorder points
- Reporting — turnover rate, COGS, inventory value, stock age
- Usability — ease of use and support quality matter more than feature count
Why automation pays back quickly
- Real-time data — always know what's available and where
- Fewer errors — reliable software beats reliable people at scale
- Efficiency — bird's-eye and detailed views in one place
- Forecasting — spot trends and order accordingly
- Scale support — stock alerts and asset tracking grow with you
- Reduced cost — less deadstock, fewer stockouts, lower overhead
Five steps to manage inventory well
A practical sequence for moving from reactive to reliable.
Keep safety stock
Stocking to average demand leaves no margin for a good week. Safety stock absorbs variability in both demand and supply.
Emphasise merchandise planning
Strategic stocking, pricing, and display lifts ROI — lowering unwanted inventory, labour costs, and obsolescence.
Track your products
A single item should be traceable from raw material order through to delivery. Define ownership and method at each stage.
Invest in automation
Replace spreadsheets with connected inventory performance. Cloud-based tools update stock after every transaction and fire alerts before stockouts bite.
Audit regularly
Even with great software, physical counts matter. Annual, biannual, or quarterly reviews combined with spot checks catch drift before it gets expensive.
Frequently asked
What does "inventory management" mean?
The tools and methods used to track goods from raw materials at the manufacturer through to point of sale.
What are the four types of inventory?
Raw materials, work-in-process, MRO (maintenance/repair/operations), and finished goods.
How do you reduce inventory costs?
Automate management, centralise stock, set reorder points, eliminate deadstock, stop overstocking on gut feel.
What's the 80/20 rule in inventory?
~20% of your inventory drives ~80% of sales. Also called the Pareto Principle.
Can you use Excel for inventory?
You can — most businesses outgrow it fast. Manual, time-consuming, and introduces error at scale.
Why use inventory software?
Automate tasks, reduce error, integrate with eCommerce, POS, and accounting so everything speaks the same language.
Ready to manage inventory more efficiently?
See how Cin7 Core fits your operation. Book a walkthrough with a certified partner.