What are the main approaches to measuring influencer campaign success?

Build in a quiet week with no creator activity and measure that too. Without a period of nothing you have no idea what your baseline traffic and search volume look like, and every number you report is an absolute with nothing behind it.

Ask creators for their own post insights as a deliverable. Reach, saves and shares on their side are visible to them and invisible to you, and writing a screenshot into the brief costs nothing where asking afterwards feels like an imposition.

A useful habit is to decide the success metric before the campaign, then measure against a baseline rather than an absolute. For awareness, look at reach and the quality of engagement, not just raw likes.

For conversion, use unique codes or UTM links so the credit is traceable. The part people skip is vetting the creator first, because a strong audience-fit and a clean follower base do more for results than any post-hoc dashboard.

Flinque reports audience data and a fake-follower score per creator, which helps you set a realistic baseline before you spend. See the free tools at /free-tools/ for engagement and rate estimates.