Copy-paste hides important differences
Length, context, crop, interaction and audience expectations vary. An identical block may technically fit and still be wrong for the placement.
Create a small family, not a clone set
Keep a shared source message, then review every version independently. A family can be recognisably related without being visually or verbally identical.
Status is part of the content
The workflow should expose which version is a draft, approved, scheduled, published or needs attention. That state is more useful than a generic “campaign complete” badge.