We have already successfully set up a Winback Flow for our current customers. But we also want to reach our past customers, who ordered weeks, months or even years ago. We want to contact them one last time, to hopefully win them back as active customers or eventually sort them out.
For that purpose, I created a segment for all customers who have placed one order over all time but never returned to our shop. This segment contains approx. 50.000 contacts. But only 6.000 out of those 50.000 are officially subscribed to our newsletter.
My question is, are we allowed (according to German law)to contact all 50.000 of those customers or should we keep it to the 6.000, who are officially opted in?