Hi Vijay,The trait type is a meta data field, which is optional. But,
they are required in many use cases for example:Audience Lab, and
Audience Optimization Reports.While collecting media data traits, you
must always assign these types. As there are reports in AOR, for
example: reported conversion traits, that will only populate if a
correct type is selected.Pixel Type Event Type valueImpression Delivery
EventClick ClickConversion ConversionThanks,Varun Kalra