HS events for Facebook lead generation campaigns

Hello All,
I am trying to use the HS offline Events integration with Facebook in order to optimize my campaigns.
I have integrated the 2 platforms and still I get this massage when trying to run a lead generation campaign that will optimize by the Hubspot offline events:

I was following these instructions:

SO I wonder what is wrong, and if in any case I still maybe need to do this proccess that is not that easy -

by this article

well if anyone can help here that will be you know…
Thanks
Orly

@OrlyTomer I don’t have an answer, but I’ve shared with some of my colleagues. Hopefully someone can help and I can learn from your experience!