RaidPlanner can handle multiple guilds on the same site. But at least one guild must be configured to make RaidPlanner working.

Guilds have the following data stored:

Guild name, Sync Plugin. Other data may be available depending on the used Sync Plugin.
Please read Themes section, as Plugins are packed with game Themes.

Currently RaidPlanner has 2 Sync plugin available:

wow_armory and lotro.

wow_armory:

this plugin synchronizes the RaidPlanner roster with World of Warcraft’s Armory via Blizzard’s battle.net service. You will need to setup

Armory region and Realm 

lotro:

this plugin synchronizes the roster with Turbine’s data.lotro.com service. You have to registered with Turbine, and you’ll need a developer name and an API key for that. More informations here: http://lorebook.lotro.com/wiki/Data.lotro.com_Usage_Guide#Obtaining_an_API_KEY

Guild name needs to be filled in every case even if don’t use any of the above plugins.