Contract variation
Contract change · Variation order
A contract variation is a formal change to the scope, price, timing or other terms of an existing contract, made through the mechanism the contract and applicable rules allow.
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Simply put
What it means in ordinary work
It is an agreed change to the deal. A variation should be documented, assessed and approved rather than handled through informal messages.
Why it matters
Uncontrolled variations can erode value, create compliance risk and leave the contract record out of date. A clear process keeps scope and accountability intact.
A hypothetical in practice
A hypothetical supplier asks to add weekend delivery. The buyer assesses cost and service impact, confirms the change is within the contract's permitted variation mechanism, and records the approved change in a formal amendment.
Common pitfalls
Calling a change a clarification does not avoid the need for approval if scope or price actually changes.
Variations can accumulate into a materially different contract. Review the cumulative effect, not each change alone.
Regional lens
How this lands where you work
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As-of date for date-sensitive regional content: 5 November 2026. Read the review policy.