I am trying classify Channel and Source/Medium from Original Data into Channel and Source/Medium as Dashboard of Google Analysis
It means that:
I exported Original Data from Google Analytics.
I wanna classify this Source/Medium into specific group the same as Google Analysis Dashboard shows it.
Notes: original data is detail with each source and each medium. Besides, Dashboard show Source/Medium by any principle.
Is there any principle to classify this Source/Medium? For example, in the columns "digital_source" there are "mailjet", "mailjet1008" it is grouped with general name "email"