FYI as a word of caution with FB numbers in GA...FB gives 100% credit to view-through conversions with a 1-day lookback window by default in addition to click c

FYI as a word of caution with FB numbers in GA...FB gives 100% credit to view-through conversions with a 1-day lookback window by default in addition to click conversions on a 28 day window. GA only has last click attribution by default in most reports (attribution/multi-channel aside) and only tracks post-impression performance from channels Google owns (GDN, data piped in via DCM, etc.). So you'll likely have large discrepancies. That is actually one of the biggest headaches with getting reporting automated at scale that I've had to solve for many times in my career. Bid management platforms don't hold all the data, your ad server can hold most of it but you need to pipe stuff in and still have real limitations on the levels of data you have in there, etc. Even extremely expensive enterprise solutions don't fully solve for all of this.