I have a report in Omniture that shows me how many unique visitors viewed an appointment calendar over a set period of 1wk. Lets say the value here is 1000.
When I break this down into geographical areas, the TOTAL at the bottom of my report is still 1000, which is what I would expect. My problem is the sum of the individual line items "area 1", "area 2" etc is less than the total. i.e. 850.
I don't understand how this can be possible, where are my additional 150 unique visitors and/or which value is my actual UV? 850 or 1000?