A Macro Code is a term used to refer to the files that are recognized by the game upon entry of the code "/runmacro". Another name for the one-action codes is Slash Commands. Anything listed in "[]" specifies a required input. If a player tries to use a code without including the additional input required, it will not work. GM-Only codes can't be used unless your account is authorized to do so. When you try to use / and any word the system says "Invalid Command".