`GetGuildMemberCharacterInfo`

ESO Lua API function — used by 73 of the 3,030 addons we indexed (combined 6,500,538 downloads). Signature from the official ESOUIDocumentation.txt, API version 101050.

Official signature

GetGuildMemberCharacterInfo(integer guildId, luaindex memberIndex)

Returns: bool hasCharacter, string characterName, string zoneName, integer classType, alliance, integer level, integer championRank, integer zoneId, id64 consoleId

Real usage — from pChat (Chat customization & help: look/notification/sound/automation/history)

                if memberIndex ~= nil then
                    local hasCharacter, charName, _zoneName, _classType, _alliance, level, championRank = GetGuildMemberCharacterInfo(guildId, memberIndex)
                    if not isOnline then

Short excerpt from the shipping addon pChat (Chat customization & help: look/notification/sound/automation/history) — its ESOUI page; the code belongs to its author. Shown because documentation without a working example is half a reference.

Most-downloaded addons using it

Addon	Total downloads
pChat (Chat customization & help: look/notification/sound/automation/history)	1,832,805
Port to Friend's House	1,303,975
OdySupportIcons - Group Role Icons & More	484,590
Faster Travel (Wayshrines menu & Teleporter)	369,697
EasyTravel	293,327
ESO-Database.com Export AddOn	272,910