Does it matter if I use email link tag or just campaig flow steps?

[Daniel_Riggs]

I've got a program where I created a link tag for an email. When someone clicks on the link and goes to the webpage and fills out the form, I add them to a list based on whether the tag was present in the URL. Am I correct in thinking I can just use a trigger: fills out form on specific webpage and add a filter: opened the specific email I sent and then add them to the list? Will this do the same thing as my initial scenario? Is one way better than the other?

[SanfordWhiteman · Accepted solution]

Always bind your triggering elements as tightly together as you can. That means using Filled Out Form with a URL constraint, not using a separate filter.

Using a filter is ambiguous because it doesn't mean the Open Email directly led to the form fillout. It's also less efficient because it means an extra db lookup.