Hi @ViktorBergman,
Thanks for your reply.
If the user used the same email address in both circumstances (cookied prior to starting the checkout due to some web tracking activity, and subsequently started the checkout) all events, both before and after the checkout event, should be logged on the same profile. If you are noticing that is not the case, then I recommend contacting our support team to have a closer look for you. If you decide to contact support, please supply them with an example email address which has run through the aforementioned steps (cookied on the site, started a checkout) and they’ll have a look for you.
I hope the explanation above helped clarify the default behavior at the very least.
Thanks for being a member of our community.