Obtain unique counts for "query string parameter value"

The context is when you tag your campaign with the query string tracking feature of Eloqua.

You also send an individual query string parameter in the link, per link.

When running reports in Insight on this tagging,the available parameter to obtain numbers by is "query string parameter value count", per "query string parameter value".

This metric, the value count, is not an "unique" metric. If the same contact clicks several times, it will register every time.

In order to obtain an unique count add Eloqua Contact ID to your report and insert a new metric based on in, that is COUNT(eloqua contact id).