Client Per Day in Summary Overview discrepancies

[Timellis]

I have run a summary report across the whole organisation for Clients per Day however when running the same report for the Switches, Appliance and Wireless for each site (There are only 3) the figures are much larger client count.

I would expect them both to match up, can someone explain what is Clients per Day and how is this figure calculated?

[alemabrahao]

Clients per Day typically refers to the number of unique client devices that have connected to the network within a 24-hour period. This calculation includes both associated and unassociated devices, meaning it counts devices that have probed the network even if they didn't fully connect.

Each client device is counted once per day, regardless of how many times it connects or disconnects.

Devices that send wireless probes but don't necessarily connect are included in the count.

Clients Usage Page Overview - Cisco Meraki Documentation

Summary Report Overview - Cisco Meraki Documentation

[Timellis]

I want to provide data to my customer and have previously given it at site wide but if i then take just WIFI for example for all 3 sites they never match up, when I take the figures separately for each site and add them over overall they are well over the site wide figures. I would have expected match.

So if I look at a device does that then mean on connecting it will hit the Wi-fi > Switch > Appliance and with effect be counted 3 times?

[alemabrahao]

Yep, your understanding is correct. When a device connects to your network, it can indeed be counted multiple times across different network components.
This means that a single device can be counted multiple times if it interacts with different parts of the network infrastructure. This is why the sum of clients from individual components (MR, MS, MX) can exceed the total number of unique clients reported at the site-wide level.
To provide accurate data to your client, you may want to clarify that the site-wide "Clients Per Day" metric represents unique devices, while individual component reports reflect the number of connections or sessions across different parts of the network.