That falls in line with previous studies that also revealed consumers aren’t flocking to social platforms to purchase something.
A December 2017 study from Cowen and Company found that US internet users who discover brands on Instagram are more likely to complete a purchase on a brand’s website (40%), Amazon (29%) or the company’s physical store (20%) than they are on the social platform where they found the product (19%). When it came to those that discovered brands on Facebook, the results were similar. More than four in 10 respondents said they completed the purchase on Amazon, and over a third said they did so on a brand’s website. Fewer (18%) said they bought something after clicking on a Facebook ad.
Source: here