Below are some key metrics and benchmarks that can help measure the success of an influencer marketing campaign:

1. Audience Reach and Growth: Track follower count, impressions or views to assess the size of the audience you are reaching through the influencer campaign.

2. Engagement Rate: Monitor likes, comments, shares and other interactions with campaign posts. A high engagement rate often signifies successful content resonance.

3. Website or App Traffic: Use tracking links to assess how many potential customers are driven to your website or app through the influencer’s posts.

4. Conversion Rate: Measure the number of sales, sign-ups, downloads, or other desired actions linked directly to the influencer’s campaign. This provides a direct indicator of Return on Marketing Investment (ROMI).

5. Brand Sentiment: Analyze comments and messages to understand how the audience’s perception of your brand has been affected by the campaign.

Different influencer marketing platforms provide different metrics and tools to track these benchmarks. For example, Flinque offers detailed analytics dashboard with data on reach, engagement, and other performance indicators. The key is to choose a platform that fits your technical needs and your overall influencer marketing strategy.

Remember, every influencer marketing campaign and business is unique, so these metrics should be tailored to fit your specific objectives.