Fabrication Quote Revision and Change Log
Track customer changes, drawing revisions, estimate impacts, commercial decisions, approvals, and issued quote versions without losing the original basis.

What this resource is for
A revised total without a visible change basis is difficult to review. The log preserves what changed, which source introduced it, which estimate items were affected, and which customer-facing quote version was issued.
Use it to distinguish customer change, document revision, estimator correction, supplier refresh, and commercial option changes rather than collapsing every movement into one unexplained revision.
Designed for: Estimators managing addenda, revised drawings, customer clarifications, and re-quotes during fabrication tendering.
What is included
- revision register
- change classification
- source document reference
- affected estimate and quote areas
- cost and programme impact
- approval and issue record
- open-change summary
Fields and review points
How to use it
Preserve the prior snapshot
Keep the earlier RFQ evidence, estimate, assumptions, and issued quote version. Do not rewrite the historical basis.
Trace the new change
Identify the addendum, drawing, email, supplier refresh, or internal correction and link it to the affected scope and estimate treatment.
Issue a controlled revision
Review the resulting price, lead time, assumptions, exclusions, and options. Record approval and the exact customer-facing revision sent.
Important review boundaries
- The log is not a contract variation approval system.
- Do not treat every price movement as customer-caused.
- Closed changes should remain in the history rather than being deleted.
Questions about this resource
When should a new quote revision be issued?
Issue control depends on company policy and customer requirements. A new customer-facing revision is generally appropriate when approved scope, price, terms, lead time, assumptions, exclusions, or options change.
Can multiple drawing changes share one revision?
They can be grouped when they belong to one reviewed issue, but retain enough item-level detail to trace each affected estimate area.
Use the editable version with your own reviewed data
We will email the download link and add you to the Kwantflow newsletter for practical RFQ and estimating guidance.


