Enough Stock, and No More: Inventory in Manufacturing and FMCG
Updated: Oct 28
Every warehouse holds two versions of its stock. One sits on the shelves. The other sits in the records. They are supposed to match, and quite often they do not.
In manufacturing and fast-moving consumer goods (FMCG), things move quickly, and stock is where a good deal of money quietly sits. Companies that manage it well can cut costs, keep customers happier and run more efficiently. This piece sets out some practical ways of doing that, with examples, for anyone trying to find a way through the problem.
What the job actually is
Inventory optimisation means holding enough stock to meet demand while keeping the cost of doing so down. It is a balancing act. In manufacturing and FMCG, where demand can swing a long way, it is a demanding one.
Why it is worth doing
Lower costs: Less surplus stock means lower storage costs and less waste.
Better cash flow: Money not tied up on shelves can be put back into the business.
Happier customers: Customers whose orders arrive on time tend to come back.
Better forecasting: Accurate stock data makes it easier to see what demand will look like next.
Start with an honest look
Before changing anything, it is worth understanding how things are done now. A few steps help.
Audit the stock
Go through what you hold, properly. That means:
Counting stock: Check that what is physically there matches the records.
Identifying slow-moving items: Find the products that are not selling, and decide what to do about them.
Analysing stock levels: Work out whether you are holding too much or too little.
Look hard at the system
Examine the tools you use to manage stock. Is the data accurate? Can people use them without difficulty? If not, a more robust system may be worth the investment.
Making the changes
Once the present position is clear, the work of improving it can begin.
Forecast demand
Good forecasting sits at the heart of good inventory management. Three things help:
Historical data analysis: Past sales show trends and patterns that tend to repeat.
Market research: Keep up with the market and with what customers want.
Working with sales teams: They will know about promotions and product launches before the warehouse does.
Consider Just-In-Time (JIT)
Just-In-Time means receiving goods only as production needs them. The aim is less waste, and the savings can be substantial. But it depends on a reliable supply chain and good relations with suppliers. When either fails, there is nothing on the shelf to fall back on.
Use inventory management software
The right software can simplify a great deal. Look for:
Real-time tracking: Watch stock levels as they change, to avoid both running out and over-ordering.
Automated reordering: Set reorder points so that essential items are replenished before they run out.
Reporting and analytics: Use the data to understand how stock is performing.
Arrange the warehouse sensibly
The layout of a warehouse matters more than it might appear. Consider:
Organising by popularity: Keep fast-moving items near the shipping area so they take less time to pick.
Clear labelling: Label everything clearly so that it can be found and identified easily.
FIFO or LIFO: Depending on the product, rotate stock on a First-In-First-Out (FIFO) or Last-In-First-Out (LIFO) basis.
The seasons
Seasonal demand is a familiar headache in manufacturing and FMCG. There are ways to manage it.
Build stock ahead of the peak
If you know demand will rise, build stock in advance. A product that sells well over the holiday season should be on the shelves before the season starts, not during it.
Keep the supply chain flexible
Cultivate suppliers who can vary order quantities and lead times. When demand changes without warning, that flexibility is what lets you respond.
Watch the trends
Keep an eye on the market and on how customers behave, and adjust stock to suit. Social media, market reports and customer feedback all give early signs of a shift.
Where technology helps
Technology now does much of the heavy lifting in inventory management. Three tools are worth considering.
RFID
Radio Frequency Identification (RFID) tags make tracking more accurate. They allow stock counts to be automated, which removes a good deal of human error.
Cloud-based systems
Cloud-based inventory systems give access to live data from anywhere. That helps teams work together and reach decisions faster.
Artificial intelligence (AI)
AI can work through very large quantities of data and pick out trends in stock and in customer preferences. Used sensibly, AI-driven analysis can lead to better-informed decisions.
The people
None of this works without a team that knows what it is doing. Training makes the difference.
Train regularly
Hold regular sessions to keep people up to date with good practice and new technology. Efficiency improves, and mistakes become fewer.
Listen
Make it easy for staff to say what is not working. The people closest to the stock often see problems first.
Cross-train
Train people across different parts of inventory management. A more flexible workforce keeps operations running at peak times or when staff are short.
Knowing whether it is working
To judge whether any of this has helped, set key performance indicators (KPIs). Three are worth tracking:
Inventory turnover ratio: How often stock is sold and replaced over a given period.
Stockout rate: How often items are out of stock, which customers notice.
Carrying cost of inventory: Everything it costs to hold stock, including storage and insurance.
Review them regularly. They will show where things need to improve, and whether the changes are having any effect.
In the end
Getting inventory right in manufacturing and FMCG is never finished. It takes planning, execution and constant monitoring. Sound methods, sensible use of technology and a well-trained team will all help. The aim does not change: meet demand, and keep the cost of doing so down. It is worth starting now, because the shelves and the records will not reconcile themselves.
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