GET /v1/metrics/definitions.
Time
Volume
Because accepted counts acceptances in the period and invites counts sends in the period, acceptance rate can go above 100% in a short range — for example a quiet week in which invitations sent the week before were accepted. Widen the range for a stable figure.
Replies
Because interest is read live, correcting an intent in the Inbox changes the report for past days too. That is deliberate: the report should match what you believe about the thread.
Outcomes
Meeting and Won depend on your pipeline stages carrying the right meaning. Set that under Leads → Manage → Stages: each stage can be marked as new, contacted, connected, replied, interested, meeting, won or lost. New workspaces come with all eight already mapped.
Cost
Set Monthly cost on each sender. Leave it empty and that sender contributes nothing to the cost figures.