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I have the following problem, I want to see the percentage of new sessions in a given month. I am specifically interested in new sessions by "direct" channelgrouping

in custom report I set dimensions for November: yearMonth, source, medium, channelgrouping. and metrics:percentNewSessions it gives me 35%

then I create a custom reports with the same dimension but with Date as a metric.I average the %new session and get 38%

why does it differ? What should I trust?

nurma_a
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1 Answers1

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Both of these measures are true, but they tell something different.

Another simple use case with date metric:

Day 1: visitor A
Day 1: visitor B
...
Day 7: visitor A
Day 7: visitor C

— Week unique visitors: 3
— Week sum of daily unique visitors: 4

Define your KPI, what is measured, how it is measured, the period for measurement, and always stick with the KPI parameters; else you're on another one :)

Neii
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