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?
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.