Count visitor uniquely across the browsers and devices
We have internal site where user can login using the customer ID.
Currently we are capturing the ECID and MCID in the analytics.
But when we are checking the unique visitor count for month the count which we are getting is more the actual total customer count.
(I know that UV metric count the visitors separately if user uses different browsers and devices. due to this the UV which we are getting is more than actual count.)
If we want to identify the visitor uniquely across the browsers and devices together then what would be the suggested approach ?
