`EVENT_GUILD_MEMBER_PLAYER_STATUS_CHANGED`

ESO Lua API function — used by 41 of the 3,030 addons we indexed (combined 4,975,396 downloads). Signature from the official ESOUIDocumentation.txt, API version 101050.

Official signature

EVENT_GUILD_MEMBER_PLAYER_STATUS_CHANGED(integer guildId, string displayName, integer oldStatus, integer newStatus)

Real usage — from BeamMeUp - Teleporter (Fast Travel)

	if BMU_savedVarsAcc.FavoritePlayerStatusNotification then
		EM:RegisterForEvent(appName, EVENT_GUILD_MEMBER_PLAYER_STATUS_CHANGED, BMU.FavoritePlayerStatusNotification)
		EM:RegisterForEvent(appName, EVENT_FRIEND_PLAYER_STATUS_CHANGED, BMU

Short excerpt from the shipping addon BeamMeUp - Teleporter (Fast Travel) — 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
BeamMeUp - Teleporter (Fast Travel)	2,770,107
OdySupportIcons - Group Role Icons & More	484,590
Faster Travel (Wayshrines menu & Teleporter)	369,697
EasyTravel	293,327
Bar Steward - Multi Toolbar	204,140
Shissu's Guild Tools	186,581