Where clicks come from
When a volunteer shares a tracked link, Echo records each click with a rough city and state. It never learns who clicked and never stores an address.
It then tries to work out which of that volunteer’s networks the click came through. It starts from the networks that volunteer has reported sharing that piece of content to, then narrows those to the ones whose own location fits where the click came from. Whatever survives is the answer, and Echo shows it as audience labels rather than as a single named network, so a click in Austin from someone who shares to two Texas groups is credited to what those groups have in common, not forced onto one of them.
Some clicks cannot be placed at all. If the volunteer has not yet filed a report saying where they shared that content, Echo has nothing to narrow, and those clicks are counted as awaiting report. They are not lost. They resolve as soon as the report arrives.
This is why reporting back matters even after the clicks already happened. A campaign with a low report rate has a map full of clicks Echo cannot explain.