Why a Supply Chain Needs Continuous Improvement
Your supply chain is everything that happens between ordering material from a supplier and the finished product reaching your customer: buying, shipping, customs clearance, storage, production or preparation, distribution and collection. When those links work in isolation, the familiar symptoms appear. Inventory is high and yet stockouts keep happening, urgent orders run up freight bills, and customers wait for delivery dates nobody keeps.
Improving a supply chain is not a single big project. It is a series of practical decisions in each link, measured, then adjusted. In Saudi Arabia the subject carries extra weight under the National Transport and Logistics Strategy launched in June 2021, which aims to raise the sector's share of GDP from 6% to 10% and put the Kingdom in the global top ten of the logistics performance index. National infrastructure is improving, but whether a company benefits depends on how well it runs its own chain.
This guide sets out ten strategies to improve your supply chain, with hypothetical worked examples, a metrics table and a suggested order for getting started.
Strategy 1: Map the Chain as It Really Works
Before improving anything, put on one page how materials, information and money actually move through your business. Who are the main suppliers? Where do they ship from? How long does each stage take? Where do goods wait? Who approves what?
This exercise nearly always turns up surprises: a purchase order approval that takes five days, goods sitting at the port because paperwork is incomplete, or a branch ordering directly from a supplier outside the system. Here is a hypothetical map for one imported item at a trading company:
| Stage | Actual time | Observation |
|---|---|---|
| Need identified to purchase requisition | 4 days | Stock reviewed only weekly |
| Requisition to approved PO | 6 days | Three approval levels for a repeat order |
| Supplier preparation and shipping | 25 days | Partly outside the company's control |
| Port clearance | 7 days | Documents completed after the shipment arrives |
| Receipt, inspection and putaway | 3 days | No scheduled receiving slots |
The total is 45 days, and 20 of them are inside the company. Nearly half the lead time can be worked on without negotiating with anyone. That is why mapping comes first.
Strategy 2: Build One View of Stock and Orders
Visibility means that everyone making a decision sees the same correct number at the same time:
- Stock of every item at every warehouse and branch, including what is reserved.
- Open purchase orders and their expected arrival dates.
- Goods in transit between locations.
- Open customer orders and their promised delivery dates.
When this data lives in separate spreadsheets updated by different people, each department decides on a different number. Sales promises a delivery against stock that no longer exists, while purchasing orders an item that is sitting in another warehouse. A single system is the foundation every other strategy rests on.
Strategy 3: Manage Suppliers on the Numbers
Suppliers determine much of your chain's quality, cost and speed. Managing them well involves:
- Regular, objective scoring. On-time-in-full delivery, inspection rejection rate, invoice accuracy and responsiveness, all taken from receiving and invoice data rather than impressions.
- Deliberate dual sourcing. An active second source for critical materials, even with a small share, protects you when the main supplier fails.
- Shared forecasts. A supplier who knows your needs for the coming months plans production better and hits dates more reliably.
- Clear agreements. Written lead times, terms for late delivery and a process for rejected goods.
A hypothetical example: a factory's packaging supplier delivers on time 70% of the time. After monthly forecast sharing and an agreed fixed lead time, that rises to 92%, and the factory can cut the safety stock it held against late deliveries.
Strategy 4: Plan Demand and Connect It to Operations
Most supply chain problems start with a wrong forecast, or no forecast at all. Demand planning means building a forecast for each item or category from history, seasonality, promotions and input from sales, then turning it into a buying, production and stocking plan.
The most important step is a monthly meeting that brings sales, operations, purchasing and finance to one number, known as sales and operations planning (S&OP). Without it, sales works on an optimistic figure, purchasing on a cautious one, and finance on a budget unrelated to either. The agenda can be simple: review last month's forecast against actual sales, discuss known changes for the next three months such as seasons, promotions and new contracts, agree buying and production figures, and flag constraints like warehouse space or cash limits. We cover the process in our guide to demand planning.
Strategy 5: Shorten Lead Times
Lead time runs from the moment a need is identified until the material is ready to use. It covers far more than transit: preparing the requisition, approvals, sending the PO, supplier preparation, shipping, clearance, receiving, inspection and putaway.
It matters because reorder points and safety stock scale with lead time. Hypothetically, an item used at 100 units a day with a 30-day lead time needs a reorder point of 3,000 units before safety stock. Cut the lead time to 20 days and that drops to 2,000. With the related safety stock also falling, average inventory for that one item can come down by more than a thousand units.
Common ways to shorten lead times:
- Fewer approval levels for repeat or low-value orders.
- Sending purchase orders electronically instead of by phone and paper.
- Preparing import documents in advance to cut clearance time.
- Local or regional sourcing where it is viable.
- Scheduled receiving slots so trucks do not queue at the warehouse.
For more on measuring and managing lead times, see our article on lead time management.
Strategy 6: Set a Smarter Inventory Policy
Inventory is a buffer against uncertainty, not a goal in itself. A good policy treats items differently:
- ABC analysis to decide which items deserve close attention.
- A calculated reorder point and safety stock for every important item, refreshed regularly.
- A monthly review of slow movers with a plan to clear them.
- A clear rule for how stock is split between the central warehouse and branches.
That last point deserves attention. Holding everything centrally lowers total stock, because demand swings across branches partly cancel out, but it lengthens delivery to customers. Holding large stocks at every branch speeds service but multiplies safety stock. The practical answer is usually fast movers at branches, slow or expensive items only at the centre, and regular scheduled transfers instead of ad hoc ones after every stockout.
Strategy 7: Raise Warehouse Efficiency
The warehouse is where many chains slow down without anyone noticing. Practical improvements:
- Slot by velocity. Put the fastest movers closest to picking and dispatch.
- Barcode receiving and issuing. Fewer keying errors, faster transactions and more accurate balances.
- Cycle counting. Counting part of the range every week keeps balances accurate without stopping operations for an annual count.
- Batch picking. Picking several orders in one walk instead of one trip per order.
- Safety and licensing. Warehouses in Saudi Arabia need a Civil Defense safety licence through the Salamah platform, renewed periodically. A warehouse closed for a safety violation stops the whole chain.
Strategy 8: Transport and Distribution
Given the distances between Saudi cities, transport is a large share of supply chain cost. Opportunities include:
- Consolidating small shipments to the same region into fewer, fuller trips.
- Planning daily delivery routes rather than leaving them to the driver.
- Comparing the cost of an own fleet with carriers, region by region.
- Scheduling outdoor loading and unloading around the midday work ban, which bars work under direct sun from 12pm to 3pm between 15 June and 15 September.
The other end of the chain: delivery promises
Many companies focus on the supply side and forget the chain ends at the customer. When a salesperson promises a date without seeing available stock and incoming orders, the whole chain turns into a race to meet an unrealistic promise, with express freight and emergency transfers. The person issuing a quote or sales order should see available stock after reservations and the arrival dates of open purchase orders, and promise a date the business can keep.
Documents and compliance are part of the chain
Goods never move alone; documents move with them. Under Phase 2 of e-invoicing, standard B2B tax invoices are cleared by ZATCA before they are shared with the buyer, so your supplier's system has to be integrated and yours has to receive and match those invoices against purchase orders and receipts. On imports, SABER conformity certificates and late shipping documents are among the most common reasons goods are held. Adding these checks to a pre-PO checklist saves days of waiting later.
Strategy 9: Manage Risk
Recent global disruptions showed that the cheapest chain is not always the best one. A simple risk register is enough to start:
| Risk | Example | Mitigation |
|---|---|---|
| Key supplier failure | Supplier plant shutdown or insolvency | Approved, active second source |
| International shipping delays | Port congestion or rerouted shipping lanes | Higher safety stock on critical imports |
| Price volatility | Raw material price spikes | Fixed-price contracts for a set period |
| Conformity requirements | Imported product needing a SABER certificate | Check requirements before ordering, not on arrival |
| Customer concentration | One customer making up a large share of sales | Credit limit monitoring and a broader base |
Review the register quarterly and focus on risks that combine reasonable likelihood with large impact.
Strategy 10: Measure With a Few Clear Metrics
Nobody follows thirty metrics. Pick five or six and review them monthly:
| Metric | Formula | What it measures |
|---|---|---|
| On time in full (OTIF) | Orders delivered complete and on time / total orders | Reliability to customers |
| Fill rate | Quantity shipped from stock / quantity ordered | Stock adequacy |
| Inventory turnover | Cost of sales / average inventory | Capital efficiency |
| Cash-to-cash cycle | Days inventory + days receivable minus days payable | How long cash is tied up in operations |
| Supplier on-time rate | On-time receipts / total receipts | Supply-side reliability |
| Supply chain cost | Purchasing, transport and storage costs / sales | Overall efficiency |
A cash-to-cash example: 75 days of inventory, 60 days receivable and 45 days payable give 75 + 60 minus 45 = 90 days. Any improvement in one of the three shortens the cycle and releases cash. For purchasing-specific metrics, see our article on procurement KPIs.
Worked Example: A Parts Distributor With Three Warehouses
A hypothetical auto parts distributor runs warehouses in Riyadh, Jeddah and Dammam, holds SAR 15 million of inventory and achieves 78% OTIF. Over nine months it:
- Moved all stock into one system so each warehouse sees the other two, making internal transfers the alternative to urgent orders.
- Classified items ABC and reset reorder points for A items at each site based on actual usage.
- Agreed fixed lead times and monthly forecast sharing with its three largest suppliers.
- Started weekly cycle counts on A items.
Illustrative results: OTIF rose to about 90%, inventory fell to SAR 13 million, releasing SAR 2 million of cash, and urgent orders dropped by more than half. None of it needed complex technology, just one view of the data and disciplined decisions.
Common Mistakes in Improvement Projects
- Technology before process. A new system on top of unreviewed procedures just moves the mess to a newer screen.
- Improving one link at another's expense. Purchasing cuts unit price by buying in bulk, the warehouse overflows and storage cost rises. Measure improvement across the whole chain.
- Single-person dependency. When supplier knowledge and lead times live in one buyer's head, everything stalls when that person is away.
- Ignoring master data. Old lead times, wrong units of measure and duplicate items make every calculation wrong, however advanced the method.
Where to Start
- Map the chain and measure current metrics so you know your baseline.
- Bring the data into one system, because everything else depends on it.
- Fix the biggest weakness the numbers reveal, whether an unreliable supplier, inaccurate stock or a missing forecast.
- Establish a monthly S&OP meeting.
- Repeat the cycle: measure, improve, review.
How an ERP System Supports Supply Chain Improvement
Most of these strategies need purchasing, inventory, sales and accounting on one database. That is what makes real-time stock visibility, supplier scoring from receiving data and a cash-to-cash calculation possible without manual spreadsheets.
Tranquil offers a cloud supply chain management solution that links purchasing, central inventory and sales, from quotations through delivery and returns, to financial accounting, with custom reports and multi-level approvals available through our customisation services. Contact the Tranquil team to review your chain and set improvement priorities.
Frequently Asked Questions
What is the first step to improving a supply chain?
Map how the chain works today and measure a handful of core metrics such as OTIF, inventory turnover and the cash-to-cash cycle. Without a clear baseline you cannot tell whether any change worked.
Is lower inventory always an improvement?
No. Cutting stock without shortening lead times or improving forecasts raises stockouts and hurts customers. The aim is the right stock for each item in the right place.
How many suppliers do I need for a critical material?
A practical rule is one main supplier plus an approved, active second source with a smaller share. A backup you have not ordered from in a year will not be ready when you need it.
What is the difference between demand planning and S&OP?
Demand planning produces a forecast of what customers will order. S&OP is the monthly process where departments turn that forecast into an agreed buying, production and inventory plan.
Do small businesses need these strategies?
Yes, in a simpler form. A small firm does not need a detailed risk register, but it does need accurate balances, reorder points on key items and a close eye on its most important suppliers.

