Determining measurable and achievable Key Performance Indicators (KPIs) for your influencer marketing campaign necessitates specificity, relevance to your brand goals, and a clear understanding of the tools at your disposal.

Initially, determine the overall goal of the campaign. This could be increasing brand awareness, boosting sales, or attracting new followers.

Once the goal is set, select specific KPIs that align with this goal. For a brand awareness campaign, KPIs might be reach, impressions or follower growth. For a sales-driven campaign, consider KPIs like conversion rate, click-through rate, or sales volume.

Next, understand what metrics can be tracked on the influencer marketing platform you’re using. For instance, Flinque offers comprehensive analytics that include not just basic follower count and engagement metrics, but also detailed demographic data, sentiment analysis, and click-through rates. Using these diverse analytics, you can track your KPIs effectively.

Comparatively, platforms like HypeAuditor focus more on tracking followers, engagement rates, and audience authenticity, while others like InfluencerDB also provide audience insights, hashtag analysis, and mentions.

Ensure the KPIs are achievable within your budget and timeframe. Use data from past campaigns (if available) to set realistic targets. For an initial campaign, industry benchmarks could be a good starting point. KPIs must also be updated regularly based on campaign performance for optimization.

Remember, the right KPIs depend on your goals, target audience, and campaign scope. Always review and refine them as needed. Follow-up with comprehensive measurement to analyze campaign performance and optimize future strategies.