Best practices for inventory optimization in manufacturing and distribution

The business landscape for manufacturers and distributors has changed dramatically over the last few years. Supply chain challenges stemming from tariffs, geopolitical instability and other issues have made inventory management more difficult. Difficulty obtaining materials and other inputs can diminish your ability to deliver products, which leads to issues with working capital.

Manufacturers may need to consider internal changes to free up capital, including inventory optimization. Keep reading to learn the specifics about inventory optimization and how it can have a meaningful impact on working capital.

What is inventory optimization?

Inventory optimization is the process of determining and maintaining the right quantity, mix and location of inventory to meet customer demand while minimizing costs and maximizing operational efficiency. For manufacturers and distributors, this means balancing two competing risks:

• Carrying too much inventory, which ties up working capital and drives up carrying costs
• Carrying too little, which leads to stockouts, production delays and missed customer orders

The core objectives of inventory optimization in manufacturing and distribution include:

• Reducing excess and obsolete stock
• Improving demand forecasting accuracy
• Aligning replenishment cycles with actual consumption patterns
• Building supply chain resilience without overstocking

When these objectives are met together, businesses gain a sharper view of their cash position, more predictable operations and the ability to respond to market shifts without relying on emergency financing to cover preventable gaps.

What are the benefits of inventory optimization in manufacturing?

A well-executed inventory optimization plan delivers measurable financial and operational improvements across the business. Key benefits include:

• Improved cash flow and working capital: Reducing excess inventory releases cash that can be reinvested in growth, operations or debt reduction rather than sitting dormant on a shelf.
• Lower carrying costs: Less inventory on hand means reduced expenses related to storage, insurance, handling and depreciation.
• Fewer stockouts and production disruptions: Better demand visibility helps ensure the right materials are available when needed, reducing costly production delays and unplanned purchasing.
• Stronger supplier relationships: Sharing demand data with suppliers supports more predictable lead times and creates leverage for better pricing and priority fulfillment.
• Reduced obsolescence and write-offs: Tighter inventory controls reduce the risk of holding items that can no longer be sold or used, protecting margin and financial reporting integrity.
• Better customer fulfillment: Optimized stock levels improve fill rates and on-time delivery, which both directly affect customer satisfaction and long-term retention.
• Cleaner financial reporting: Accurate, real-time inventory data improves the reliability of financial statements and simplifies audit and lender reporting.

The importance of working capital management

Not all businesses are experiencing working capital gaps. According to the Working Capital Management Report issued by the National Center for the Middle Market, 59% of participants do not at all experience issues with working capital and only 36% have issues more than twice per year.

For those facing regular issues, the challenge is typically solved by tapping lines of credit or taking additional business loans. Businesses need to carefully review practices, including inventory management, to identify opportunities for optimization. Even relatively minor adjustments to inventory can result in significant payoffs.

Here’s an example:

Consider a mid-market manufacturer of consumer goods that was growing rapidly but struggling to consistently fulfill orders. The company relied on disparate modules, which required duplicate data entry and management. This created slow and error-prone processes and made it difficult to track and understand inventory levels. As a result, the business couldn’t determine which inventory was contributing to margin and which was quietly eroding it. Leadership was leaning on a line of credit to cover cash shortfalls that better data could have prevented.

After implementing an integrated ERP solution and redesigning its inventory tracking processes, the company increased warehouse efficiency and filled significantly more orders than the previous year. Cash that had been locked up in excess and misallocated stock was freed up, reducing the need for short-term borrowing and improving financial visibility across the organization.

This pattern is not unique. Distributors face similar pressure. Common distribution pain points include inventory spread across channels with limited visibility and accuracy, and fulfillment speed at risk due to labor shortages and process inefficiencies. These conditions force reactive purchasing decisions, inflate safety stock levels and create carrying costs that compound over time.

Inventory management best practices for manufacturers

Several optimization steps can be followed to improve inventory management. The best practices outlined below apply to businesses across multiple industries.

Establish inventory KPIs

These key performance indicators (KPIs) help a business measure performance toward inventory management goals. They are especially useful tools for businesses seeking to improve in one or more areas. Common inventory KPIs include inventory carrying costs, inventory write-offs or write-downs, rate of inventory turnover, cycle time and fill rate. By regularly evaluating processes in these areas, it becomes easy to identify trouble areas where changes are needed.

Reduce inventory

Most businesses have between 25% to 30% of working capital tied up in inventory. For this reason, it is important to find the point where the lowest amount of inventory can be maintained without being understocked. Common inventory reduction methods include:

• Lowering lead times: This can be accomplished by tracking existing lead times, sharing sales data with suppliers and reducing minimum order quantities.
• Liquidating obsolete inventory: This can be accomplished by offering customers discounts or positioning it as a tax write-off.
• Improving inventory forecasting: By implementing real-time tracking and reporting, integrated communication and large-volume inventory management tools, businesses can make more reliable forecasts.

Optimize inventory turnover

Inventory turnover refers to the number of times inventory is sold or used in a given period. This will help management understand the market demand for products and the amount of old or obsolete inventory being carried. Common ways to increase inventory turnover include testing new pricing strategies, getting rid of old inventory, improving demand forecasting and streamlining the supply chain to reduce delivery costs and in-transit times.

Carry safety inventory

This is a small amount of select inventory designed to protect from sudden spikes in market demand and lead times. Without this reserve inventory, a business could be exposed to a loss of revenue, customers and market share if unable to fulfill orders. When properly used, it manages against risks of unexpected demand and acts as a buffer for longer-than-expected lead times.

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