We currently added in a field to all of our Marketo forms on our website so that someone can subscribe to our emails (field is a check box named Opt-In). When the field is checked and submitted, we send them an automated email with an embedded link that takes them to our subscription page. Seems this works great for those that have the value of that field marked "false", but for those that are "true" nothing happens. The email is triggered by data value changes, Opt-In, value = true.
Would like to see what other companies are doing for their subscriptions, and if anyone has ideas on how we can better improve our process so that when that field is checked anytime, they are sent the subscription email (so they can update their preferences). Thank you so much for your time/recommendations.
There are several dozen threads on this that you can use.
If your CDV looks at a Change to TRUE, and it is already TRUE, then nothing will happen, so you want to remove that constaint to say anytime, and then the Filter is Opt In=TRUE, such that it will evaluate any change.
An alternative is to use Fills Out Form is X AND Opt In=TRUE. Prob will work better.