On the sitemember

Roster

Everyone in the guild, and how much of it the addon measures.

What it does: The list of every character the game sent, with level, rank, item level and professions. The top says how many the addon measures and how to reach the rest: the bot calls by DM whoever has Discord linked, and the invite in the channel reaches whoever does not. Each name opens the person's sheet: gear, attendance night by night, what they got in loot, their other characters and how many times they said yes and did not show up.
Who sees it: Whoever shares a Discord server with the guild. Each member's Discord name, the call buttons and the list of unmatched registrations are only for whoever has Manage Server on a guild server.
Where to find it: In roster, on the guild bar. A person's sheet opens by clicking their name here, on a recorded night or on loot.

The roster changes when an officer's companion sends what the game saved. The game only saves when the officer leaves the game or does /reload.
An older upload never overwrites a newer one: with two officers sending, the most recent data for each person wins.
An officer with an out-of-date addon does not erase what a newer addon already sent, such as gear.
Measured means having an item level, and only the addon measures it. “no addon” is whoever no addon has measured yet.
The default order is “needs attention first”: whoever has a warning, then the measured from highest item level to lowest, and last whoever has no addon, in alphabetical order.
“Call by DM” calls each person at most once a week. The row shows “queued” or “called” with the day, in place of the button.
On the sheet, “20+ lockouts” counts only raids of 20 people or more. Two nights in the same raid in the same week are a single chance.

Empty roster: it appears when the first roster arrives from the game. Whoever manages the server sees the button to turn it on.
“no addon” is not the member's fault. The game tells everyone the name, class, level and rank; item level, gear and professions only exist for whoever has the addon.
“said yes and did not show up” only counts raids that someone recorded with the addon. With no absences, the block does not even appear.
The “officers” filter counts only the guild's two highest ranks in the game. A lower rank does not count, even with “officer” in its name.