You need the first interaction, which will (most of the times) be a button. This is an IG requirement.

But after that button, you can do anything you want!

So make that first interaction interesting with an exciting CTA to make them click and continue the conversation!

Once they click that first button you can leverage all the magic from ManyChat to make the quiz you’re imagining.

Cool, thank you very much for your fast answer. What is the best experience, from a cold to a warm lead to a sale…

My Idea is to make after the comment in the PM a link to a free PDF with content and then they get after one day or less a quiz with a link to a webinar and at the end of the webinar a link to my homepage. What do you think? 

Really depends on what you’re selling and your audience…

But this is definitely a good starting point! 

You should definitely test it out, see how your audience reacts, and then adjust and keep iterating.

Good luck!