Determine unique sessioncount

Hi Experts,

Please could you help, trying to identify a unique session from the supplied data.

in given extract, there are users and devices, to determine a unique session rules are:
Could you help with VBA or formula to determine unique count.

1:  1 user + 1 device = 1 sessioncount
2: Multiple user + 1 device = 1 sessioncount
3: 1 user + multiple device = 1 sessioncount
usage.xlsx
Regards
Mac
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macentrapAsked:
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Saurabh Singh TeotiaCommented:
I'm assuming this is what you are looking for..

This will first check if the pc count is unique and if the pc count is unique then i will check for user name and if it's unique then will give session count as 1..

Saurabh...
usage-1.xlsx

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macentrapAuthor Commented:
thanks, would the data have to be sorted before SUMPRODUCT is used, as all together I have around 50000 rows which is not sorted.
Saurabh Singh TeotiaCommented:
No not necessarily your data if not sorted then also it will work..

Saurabh...
macentrapAuthor Commented:
Thank you
macentrapAuthor Commented:
Hi there Subrabh

is this something you can help please, as I misunderstood the 3 condition earlier

http://www.experts-exchange.com/questions/28691721/Determine-unique-Service-session.html#a40846337
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