What's the difference between an adopted clause and a localized clause?

Adopt a global clause to reuse it without change in a local business unit.

Localize a global clause to use it with edits in a local business unit.

All clauses you adopt and localize must be approved within your local business unit before they can be used for contract authoring. You can set up approvals to be automatic for adopted clauses, but not for localized clauses.