The Analytics tab on a campaign, or /campaigns/:campaignId/analytics.

The funnel

StageCounted when
EnrolledThe customer matched the audience and a trigger fired
SentThe message left EDGR
DeliveredThe provider confirmed delivery, where the channel reports it
OpenedAn email pixel pinged back, or the channel reported a read
ClickedA tracked link was followed
RepliedInbound arrived that matches the thread
HandoffAn Exit — Handoff node fired, which is the goal
Each stage shows the number of customers, the conversion from the stage before it, and the cumulative share of everyone enrolled. Filter the page by date range — today, 7 days, 30 days, or your own — and by channel.

Per-node numbers

Viewing a campaign on the Analytics tab overlays each node in the builder with what it did: sent, opened, clicked, replied. That tells you which step in a sequence loses people.

Freshness

Figures refresh about once a minute. Reload for the current state.
Opens are noisy. Gmail and corporate mail scanners fetch the tracking pixel before a human looks at the message, so treat the open rate as a trend rather than a count of people. Clicks and replies are reliable.