In my adds I always observe that number of clicks shown in facebook is greater than Number of visitors in google analytics. And number of visitors in GA is always greater than the number of visitors in shopify. In order to make an analysis for my campaign, which results should i go on with? I usually observe some big differences and this puts me in a difficult position to work with.
Is the reason for the discrepancies between FB and Shopify the people who clicked on my ad accidentally and then immediately closed the website? Or is there any other aspect I should think about?