The following article explains the steps on how to Mark Google Shopping in Analytics for at least currently, Google Analytics does NOT separate organic and shopping traffic. GREAT for ecommerce sites.

Screenshot

See Steps Below:

Filter Type:
Custom Filter
Advanced

Field A -> Extract A:
Campaign Medium
organic

Field B -> Extract B:
Referral
(?|&)tbm=shop

Output To -> Constructor:
Campaign Source
google shopping

Field A Required:
Yes

Field B Required:
Yes

Override Output Field:
Yes

Case Sensitive:
No

That’s it. EASY!