If you just installed ThoughtMetric in the last few days this is normal and expected. If ThoughtMetric has only been installed for a few days it's not going to be very accurate yet. It usually takes about a week for ThoughtMetric to collect enough data for it to start to have highly accurate attribution. This is simply because if a customer clicked a Facebook Ad last week (before ThoughtMetric was installed) then made a purchase today, our system wouldn't know that they originally came from Facebook.