How to get a custom UV metric against a custom visitor ID?

[kaustubht340763]

Hello to All Adobe Analytics evangelists!

We are implementing a custom visitor ID by passing into an eVar(dimension).We need a UV count against this new eVar, therefore, need help in order to implement a custom unique visitor metric that is stitched to it.

Note- Looking at normal UV against this dimension won’t work for us – coz default UV metric depends on Omniture@@’ s default Visitor ID methodologies

And also, setting up a custom event with visitor level serialization won’t work - coz that will be dependent on Omniture’s default visitor ID

Looking for the best possible solution to tie a custom UV metric against my custom visitor ID?

[Gigazelle · Accepted solution]

I'd recommend looking into the 'Approximate Count Distinct' function in calculated metrics. This allows you to pull the number of unique eVar values as a metric, which should be exactly what you're looking for.