The approved event brief has one authoritative location, while the decision log links to it from Planning. A new member follows the orientation note to the latest decision and next action rather than searching an entire chat history.

Critical check: The artifact clearly distinguishes a blueprint from a live implementation and identifies a single authoritative home for each document.

Final project: Deliver the communication map, four-channel blueprint, document conventions, meeting note and onboarding guide. Optionally implement them in your own authorized Teams workspace and record which features are actually available.