Send New Freebie Email On Form Submit for those already on a Double Opt-In List

Hi @Alex-111 - welcome to the community with your first question!

If you want to permit someone to repeatedly get to a “freebie page” - you may have to do a bit of custom programming to make this work.  As you observed, subscribers can only go through a List or Segment Triggered Flow exactly once, here in this documentation it explains:

• How to create a list-triggered flow : How a list-triggered flow works

Contacts can only receive a list-triggered flow once. If someone is removed from a list and then re-added to that same list, they will not re-trigger the flow. For example, if someone unsubscribes from your newsletter list and then re-subscribes, they will not receive the welcome series again.

(Same with Segments, by the way).

So the best way to work around this Limitation is to convert a “List Trigger” to a Metric Triggered Flow.  There are many Flows within Klaviyo that are sent more than once - typically things like Placed Order, Checkout Started, Add to Cart all trigger Flows an unlimited number of times per subscriber.

This requires a bit of custom coding or development to submit not only a form’s data to Klaviyo but also an “event” to Klaviyo.  You can also use third party tools like Zapier to possibly submit a Form into Klaviyo as an event.

Here’s a related post that might offer some insights as well:
 

Hope this helps!