SMS validation

Currently in AC, I have a form where I see that upon submission, the user can be redirected to a URL. Is there a way to add parameters to this? For example, the phone number entered in the form.

What I’m looking for is that clients fill out the form and upon completion, they receive an SMS via automation, to validate that the number belongs to them.

The problem is knowing which code is sent to which client, which is why I need to send a parameter.

I’m not sure if I can add a cookie where the number is stored, or something similar, to track the client who filled out the form.

Or perhaps AC already has something to validate the number and continue with a flow, and I’m not aware of it.

You could approach it a slightly different way.

If the number isn’t theirs, or incorrect, they wouldn’t receive anything.

So, maybe you can put them into a regular automation, say, “to validate your number, click this link” (and then you could add the number a query parameter (in the URL), and anyone who hasn’t clicked that link to validate, or submitted a 2nd form to confirm, would get remove from your subscriber list.