Hi @trishap612,
There is actually a helpful course on integrating with Meta ads - it would walk you through each step. This help article is also a great resource: Getting started with meta ads.
This kind of error can occur if the user who integrated with Klaviyo did not have the correct permissions upon setting up the integration. The Facebook integration is very sensitive with permissions.
The person integrating with Facebook must have full control of the Facebook Business page, Facebook Ad page, have full permission everywhere, and have accepted Facebook's Terms of Service. In order for this to work, these permissions and Terms of Service must be completed before integrating. Errors can occur if the user who integrated with Klaviyo did not have the correct permissions upon setting up the integration. I hope this helps!
~Chloe
Thank you! I think I was able to figure it out but I’ll check out your link if I have any further issues.