hi sir, I am currently working on a similar project, where my client is offering online classes and I am doing ppc advertisements through face book ads, Google ads and remarking to bring more buys/ conversions for the online class.
These classes are self hosted by my client on their website and not on Udemy. But I can promote Udemy class also. KPIs are definitely on the number of buys, but we also check for impression, clicks, ctr, cost per click, conversions in order to optimize and improve ad performance.
Also we run on-facebook lead campaigns to collects interested users data which we use for retargeting future classes. With the main object to provide maximum conversation I optimize campaigns to lower the cost per conversation.
If I am given this opportunity I assure you that you will be satisfied with my strategy and outcome from ppc advertisements.
Also as I am new to freelancer.com and I want to create my good portfolio. I am ready to negotiate and work at a discounted price.
contact me if you are interested.