The by Channel reports under Universal Analytics Reports demonstrate the Universal Analytics reports with respect to the different marketing channels.
Guide to marketing channels.
A. Navigate to: Performance AI ➡️ Google Analytics ➡️ Universal Analytics Reports ➡️ by
B. The first report is an Overview of all the visitors to your site in the specific time period:
a. The number of Sessions that people have on the site, in this case it's 32744, which is
12.41% lesser than the earlier period.
b. The number of New Users or people wh o have visited the website, in this case, it's
180189 people, which is 16.49% lesser than the earlier period.
c. The Bounce Rate or the rate at which new users leave your site without taking any
action, in this case, it was 36.7% while earlier it was 50%.
d. The Avg Session Duration or the average time a new user spent browsing the site, in
this case, it was 02:44 Minutes, while the reference was 01:30 minutes.
e. The No. of Pages/Session refers to the average number of webpages a user visits when
they come to your website, in this case, it is 3.6, whicle the reference was 2.
f. This is followed by a set of tables, the first two are Sessions and New Users. The total
number of the parameters is depicted at the top, in this case, the total number of
Sessions is 327,447.
g. The 
symbol can be used to bring up the full table of contents for each of the
tables.
h. The Direct channel caused in 115551 sessions during the time period.
i. The Direct channel accounted for 35.3% of the sessions during the time period.
j. The Organic Search channel accounted for 59186 new users coming in during the
time period.
k. Organic Search channel account for 29.6% of the total new users during the time
period.
This is followed by three tables titled Bounce Rate, Avg. Session Duration and Page
View per Session, in these cases, the big numbers at the top of the table depict the
average numbers for each of these parameters
l. The Social channel bought in users who had a bounce rate of 42.5%.
m. The Social channel accounted for 14.5% of the total sessions for the site.
n. The Direct channel bought in users who had a avg. session duration of 2:33 minutes.
o. The Direct channel accounted for 15.7% of the total sessions for the site.
p. The Organic Search channel bought in users who had an Avg. Page View per
Session of 4.
q. The Organic Search channel accounted for 17.4% of the total sessions for the site.
Next:
How do I navigate to the By Source reports under the Universal Analytics reports?
How do I navigate to the By Source/Medium reports under the Universal Analytics reports?
How do I navigate to the By Medium reports under the Universal Analytics reports?