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Procurement Glossary
Lotting Strategy: Strategic Allocation of Procurement Volumes
March 30, 2026
Lot splitting is a central instrument in strategic procurement, in which procurement volume is deliberately divided among multiple suppliers or partial contracts. This method enables companies to minimize risks, promote competition, and strengthen their negotiating position. Below, you will learn what lot splitting means, which methods are used, and how to successfully implement this strategy.
Key Facts
- Strategic distribution of procurement volume across multiple suppliers to minimize risk
- Promotion of competition through targeted division of contracts
- Strengthening of the negotiating position vis-à-vis suppliers
- Reduction of dependencies and supply risks
- Optimization of cost-benefit ratios through strategic allocation
Content
Definition: Lot Splitting
Lot splitting refers to the strategic division of procurement volume among multiple suppliers or partial contracts in order to spread risks and promote competition.
Basic principles of lot splitting
Lot splitting is based on the targeted segmentation of procurement volume. Orders are divided according to various criteria such as product categories, geographic regions, or supplier capacities.
- Volume segmentation based on strategic considerations
- Consideration of supplier capacities and competencies
- Balanced risk distribution among different providers
Lot splitting vs. Single Sourcing
In contrast to Single Sourcing, where one supplier receives the entire volume, lot splitting deliberately distributes risk. This leads to greater security of supply, but can increase administrative complexity.
Importance of lot splitting in procurement
Its strategic importance lies in optimizing the supplier portfolio. Through Lotting Strategy, companies can strengthen their market position while simultaneously increasing operational efficiency.
Methods and approach for lot splitting
The successful implementation of lot splitting requires structured methods and clear procedures for optimal volume distribution.
ABC analysis for lot splitting
ABC analysis categorizes procurement objects according to value and strategic importance. A-items often receive a 70/30 split, while C-items can be split completely.
- A-items: Strategic split with a primary supplier
- B-items: Balanced distribution across 2-3 suppliers
- C-items: Flexible split based on availability
Portfolio-based splitting strategies
Different procurement categories require different splitting approaches. The Solicitation Strategy determines the optimal lot structure for each category.
Quantitative evaluation models
Mathematical models support objective volume distribution. Scoring Model evaluate suppliers according to defined criteria and enable data-based splitting decisions.
Important KPIs for lot splitting
Measuring the success of lot-splitting strategies requires specific key figures to assess efficiency and risk minimization.
Supplier concentration
The Herfindahl-Hirschman Index measures the concentration of procurement volume. Values below 0.25 indicate balanced distribution, while values above 0.5 indicate high concentration.
- Calculation: Sum of squared market shares
- Target value: 0.15-0.35 for optimal risk distribution
- Monitoring: Quarterly review of the distribution
Security of supply
The probability of failure assesses the robustness of the supplier base. Supplier Shortlist should contain at least three qualified alternatives per critical lot.
Cost efficiency of the split
The ratio of savings to additional costs resulting from lot splitting shows its economic viability. Positive values above 1.2 justify the increased complexity of the multi-supplier strategy.
Risks, dependencies, and countermeasures
Despite its advantages, lot splitting involves specific risks that must be minimized through appropriate measures.
Complexity risks
Managing multiple suppliers increases administrative complexity and coordination effort. Unclear responsibilities can lead to quality problems and delivery delays.
- Increased management effort for supplier relationships
- Potential quality inconsistencies between suppliers
- Coordination problems in time-critical deliveries
Loss of economies of scale
Splitting volumes can lead to reduced quantity discounts. Price Negotiation During the Solicitation Process become more complex, as different conditions must be managed in parallel.
Strategic dependencies
Incorrect split ratios can create new dependencies. The Award Decision must therefore be carefully weighed to ensure long-term flexibility.
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Practical example
An automotive manufacturer strategically splits its annual procurement volume of 50 million euros for electronic components among three suppliers: 50% to the main supplier, 30% to a second provider, and 20% to a third partner. This split significantly reduces the risk of failure and enables continuous price comparisons. In the event of capacity bottlenecks, volume can be reallocated flexibly between suppliers.
- 60% risk reduction compared with Single Sourcing
- 8% cost savings through increased competition
- Improved delivery flexibility in the event of demand fluctuations
Trends & developments related to lot splitting
Modern technologies and changing market conditions are shaping the further development of lot-splitting strategies in the digital age.
AI-supported optimization
Artificial intelligence is revolutionizing lot splitting through predictive analytics and automated optimization. Machine learning algorithms analyze historical data and forecast optimal splitting scenarios.
- Automated risk analysis and assessment
- Dynamic adjustment of split ratios
- Predictive maintenance for supplier relationships
Sustainability-oriented lot splitting
ESG criteria are becoming increasingly important in volume distribution. Companies integrate sustainability assessments into their Evaluation Criteria and prefer environmentally friendly suppliers.
Agile splitting models
Flexible, rapidly adaptable lot structures enable responses to market changes. E-Auction support the dynamic reallocation of volumes based on current market conditions.
Conclusion
Lot splitting is an indispensable instrument for resilient procurement strategies. The strategic distribution of volumes reduces supply risks, promotes competition, and strengthens the negotiating position. Successful implementation, however, requires careful planning, continuous monitoring, and a balance between risk minimization and cost efficiency. Modern AI technologies are increasingly supporting the optimization of splitting strategies.
FAQ
What is the difference between lot splitting and lot formation?
Lot formation refers to the structural bundling of procurement objects into tender lots, while lot splitting describes the strategic distribution of already defined volumes among different suppliers. Both processes complement each other in the procurement strategy.
When is lot splitting useful?
Lot splitting is recommended for critical procurement categories with high volume, strategic importance, or supply risks. Especially for A-items and bottleneck products, it reduces dependencies and strengthens the negotiating position vis-à-vis suppliers.
How do you determine the optimal split ratio?
The optimal ratio is based on risk analysis, supplier capacities, and strategic objectives. In practice, 60/40 or 70/30 splits often prove effective with two suppliers, while 50/30/20 distributions are optimal for three providers.
What costs arise from lot splitting?
Additional costs include increased administrative effort, qualification costs for additional suppliers, and potential losses of quantity discounts. These should be weighed against the benefits of reduced supply risks and increased competition.
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