Adding “Facebook Login” on a checkout page decreased revenue by 3% [case study] did something very interesting.

They wanted to make it easier for people to buy things, so they added “Facebook Login” to their checkout page.

#1. Login via email.
#2: Same as #1, plus you can sign in with Facebook.

The result was that #2 made 3% less money.

It looks like 3% of people can’t use both Checkout and Facebook at the same time. This is something your viewers should know.




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