Macros
Macros is a formula utilized by some Ad Networks (like DoubleClick) which can generate certain dynamic values (such as titles) for banners and schedules. You can use them separately or combine them with other text values, for example, Custom text %size%.
Here are some of macros examples that can be used for a banner title:
%size% - Banner Size (ex 300x350)
%width% - Banner Width
%height% - Banner Height
%bannerset% - Bannerset title
%schedule% - Schedule title
%size_title% - size title (from common sizes names)
%locale% - Language code
'%locale_title% - Language title
%y% - Year
%m% - Month
%d% - Day