Help with automated emails and user id's

Help with automated emails and user id's

Hi, we want to setup an automated email that sends leads an email which contains a link that sends them to a landing page which has them schedule a date and time to speak to one of our consultants.

We need to be able to track the user which goes to the landing page and fills out the scheduling form, is it possible to automatically pull the user's id and automatically populate the link to the landing page so the user can be tracked?

For instance: 


So the user's id would replace the "xxxx" then we would be able to pass that user's data back to Zoho.

Please let me know if this is possible, thank you.