HS events for Facebook lead generation campaigns

[OrlyTomer]

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:
https://knowledge.hubspot.com/ads/create-and-sync-crm-lifecycle-events-with-your-google-ads-or-faceb...


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 
https://www.facebook.com/business/help/1588743581429919?id=735435806665862

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

[danmoyle]

@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!