Message Center is where today's steps wait for your OK. Review, edit, start or reschedule them.
Click "Message Center" in the sidebar. The badge is the number of items waiting on you.
Use the tabs: "Not started" (enrolled, waiting for you to start them), "Scheduled today", "Review" (AI drafts needing a look), "Flagged" and "All".
Click the arrow next to a sequence to see each person's message.
Click the preview icon to read the exact email before it goes out.
Edit the copy here if you want to tweak it for this person.
Click "Start all now" to send a sequence's queued messages immediately (paced by your daily limits).
Or click "Schedule" to pick a time.
"Clear all" on the flagged banner dismisses review flags in one go once you have looked at them.