Single sourcing is the deliberate choice to buy a requirement from one supplier even though alternatives may exist. Buyers use it for standardization, volume leverage, integration or a strong incumbent relationship.
Single Sourcing: what the sourcing record should show
| Area | What to record |
|---|---|
| Decision | Document why one source creates more value than a split award and define the review point. The contract should address continuity, capacity, data, tooling and transition support. |
| Evidence | Monitor dependency, financial health, performance, alternative supply markets and the time needed to qualify another source. |
| Watch point | Single sourcing is a commercial decision. Sole sourcing arises when only one practical supplier is available. |
When does Single Sourcing matter?
Document why one source creates more value than a split award and define the review point. The contract should address continuity, capacity, data, tooling and transition support.
What should buyers check before approving Single Sourcing?
Monitor dependency, financial health, performance, alternative supply markets and the time needed to qualify another source.
Single sourcing is a commercial decision. Sole sourcing arises when only one practical supplier is available.

