Dual sourcing
Dual sourcing qualifies and maintains two suppliers for the same component or material, balancing supply resilience against operational complexity. This strategy protects against single-supplier disruptions while preserving competitive dynamics that encourage good pricing and service. Dual sourcing represents a middle ground between the risks of single sourcing and the complexity of managing many suppliers.
Examples
Risk mitigation: An electronics manufacturer dual-sources a critical memory chip, splitting volume 70/30 between a primary supplier and qualified backup. When the primary supplier's fab experiences a fire, production shifts to the secondary source while the primary recovers.
Competitive tension: An automotive company dual-sources stamped brackets from two capable suppliers, allocating business based on quarterly performance reviews. This arrangement keeps both suppliers motivated to earn more share through better quality, delivery, and pricing.
Geographic diversification: A company dual-sources machined housings from suppliers in different countries to hedge against regional disruptions, currency fluctuations, or trade policy changes. Each supplier maintains qualification for the full range of parts.
Definition
Dual sourcing addresses the key vulnerability of single sourcing, supply disruption risk, while avoiding the complexity of managing many suppliers. Two qualified sources provide a backup option and competitive leverage without the administrative burden of broader multi-sourcing.
Managing dual-source relationships requires decisions about volume allocation. Common approaches include fixed splits (like 70/30), performance-based allocation that shifts share toward better performers, and market-based models where suppliers compete for each order. The chosen model affects supplier behavior and relationship dynamics.
Dual sourcing works best when both suppliers can be genuinely capable and competitive. If one supplier is clearly superior, the secondary source may struggle to maintain capability and motivation at reduced volumes. Dual sourcing also requires that parts from both suppliers be truly interchangeable without quality or performance differences.
The cost of dual sourcing includes qualification and management of two suppliers, potentially reduced volume leverage compared to single sourcing, and complexity in supply planning. These costs should be weighed against risk reduction benefits when designing sourcing strategies.
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