Did I Miss the Varnhold's Lot Import Event?

Hi all. First time posting here.
I’ve struggled to find a concrete answer to this elsewhere, so figured straight from the horses mouth was best.

I want to play Varnhold’s Lot and then import the save back into my main campaign.

My understanding is that the specific event that prompts this, is just before you are whisked away to meet Bloom lady after the end of act 3.

I have since passed this event, though not by much.
I have the letter from Aldori asking me to investigate etc, but have not departed for Varnhold yet.

I’m about to play the DLC, but wondered if I had missed the import event in my main campaign or not?