Why Google Analytics Reports Less Orders Than Actual Orders?
- In Google Analytics, if a user comes to your site twice within thirty minutes without closing their browser, they’ll register as one visit. Other web analytics solutions may treat this behavior as two visits.
- If cookies are disabled, Google Analytics is cookie-based analytics programs, and if the cookies are disabled it will not count the visit or order.
Reference:
www.google.com/support/googleanalytics/bin/answer.py?hl=en&answer=55614
