A unique profile ID must be added to all links in your emails, so we can identify a person when he visits your website from an email. For HelloDialog, the parameters to use are: profileid={id}&profilesource=hellodialog

The following screenshots shows how you can add the parameters to the templates you will use for future emails:

That's it! Datatrics will now identify visitors as HelloDialog users when they visit your website from an email and also when the revisit. All (anonymous) historical events will also be added to the user/customer.