Why don't my Zoom attendees match my registrants?
The Zoom help pages give 3 common reasons. The first to rule out: A meeting's registration report can cover all registrants, only approved registrants or only denied ones, so a registrant count depends on which group the report was made for.
Is it broken, or just quiet?
A number can fall because fewer people came, or because something stopped counting them. Below are the causes the Zoom help pages give, and how to check each one yourself.
What causes it?
A meeting's registration report can cover all registrants, only approved registrants or only denied ones, so a registrant count depends on which group the report was made for.
In the Zoom help:
When you generate a registration report, you can choose if you want to include all registrants, approved registrants only, or denied registrants only.
Generating meeting reports for registration, Q&A, polling, and surveys, read 2026-11-12.In a webinar's attendee report, people who dialed in by phone or joined from a Zoom Room are typically listed in a separate section, so a count taken from one section can miss them.
In the Zoom help:
Attendees listed in the Other Attended section typically include dial-in phone attendees and Zoom Room participants.
Generating webinar reports, read 2026-11-12.When a meeting expires, Zoom deletes it along with its registration reports, so registrant numbers for an older meeting can no longer be pulled to compare with attendance.
In the Zoom help:
If a meeting expires, Zoom deletes it along with its registration reports.
Getting started with Zoom reporting, read 2026-11-12.
How do I check it myself?
For a webinar with registration turned on, open its attendee report to see which registrants attended and which did not.
In the Zoom help:
If registration is enabled, the attendee report will indicate whether registrants attended.
Generating webinar reports, read 2026-11-12.Open the meeting and webinar registrations report to find each session with registration that you hosted, and compare its registrations with the attendee report.
In the Zoom help:
The report lists all meetings and webinars with registrations that you hosted in the default time range.
Generating webinar reports, read 2026-11-12.
How does Zoom work with Feder?
- Connect Zoom to Feder and it joins your Reach apps.
- When you connect Zoom, Feder checks the connection straight away and shows Connected only when that check passes. If a reading cannot be taken later, Feder shows it as not read, never as zero.
Some numbers are too quiet to judge daily, such as a form filled in a few times a week. Until there is enough of your own history to judge a change, Feder says it is still learning and scores nothing, rather than guessing.
See whether you can trust the numbers in Zoom, one of your Reach apps. Feder only reads. It never changes anything in Zoom.
What else goes wrong with these numbers?
- Why is a Zoom meeting missing from my reports?Zoom
- Why doesn't my Zoom participant count match the meeting?Zoom
- Why did Google Analytics stop collecting data?Google Analytics
- Why aren't my key events showing in Google Analytics?Google Analytics
- Why does Google Analytics show (not set)?Google Analytics
See every question.
Where do these answers come from?
Every cause and check on this page comes from the Zoom help pages, quoted above with the date we read them. Last reviewed 2026-11-12. We read them again by 2027-11-12. If one changes, this page changes or comes down.