A decision is conditional on facts
A clearance reflects the price, scope, delivery date, SLA, liability, evidence and assumptions known at that moment. Change those facts and the basis for the decision changes.
Material change needs a threshold
Not every edit should restart the process. Re-clearance should focus on changes that materially affect economics, authority, evidence, feasibility or interaction risk.
The record matters
A version-bound record makes it possible to answer a basic question later: what exactly did we authorise and why? Without that, post-signature learning becomes guesswork.
Re-clearance protects speed
Good versioning prevents needless full reviews. If the change is immaterial, the record can stay valid. If it is material, the review can focus on what changed.
It creates learning
When outcomes are later connected to the exact approved version, the enterprise can learn which assumptions, exceptions and combinations predict good or bad results.