WOW, they haven't been called SAINT for a while now 😛 (shades of my company where half the people still call it Omniture).
So there are a lot of ways to start going about this... first off you need to start looking at the campaign taxonomy. Are you using UTM (so that these can be read by Adobe and Google), are you using Adobe's cid (you will need to understand the formatting of the values to properly support these), are you using a mix of both UTM and cid (since Google Ads by default uses UTMs and not all companies customize this, etc).
I was part of a recent series in Campaign tracking, this might be a good place to start: https://www.youtube.com/playlist?list=PLmyLZL5BUf8ECQzyVwwMnwqrt75CP5I57
I would be happy to help you with specifics once you have are feeling more comfortable in the general space.