Using Buttons in an email to Create a tag

I have used Buttons in my email instead of a form to do the following actions:

They click the button FOCUS (there are 12 of them)
Places a tag FOCUS on contact
moves them to a new automation Called Focus
Ends current automation
takes you to a thank you page (because it has to go to a url…

Sooo we click button and it takes you to the url… doesn’t do any of the other actions

I am using this instead of a form as they have already signed up and I don’t want to add ‘friction’ by asking them to put their details in again - just want them to click a button.

Any ideas as to why it is not working welcome