Designing a campaign during the planning stage to effectively track conversions made through influencer content involves developing a comprehensive strategy and properly utilizing available tools in influencer marketing platforms.

1. Define Clear Objectives: The first step in tracking conversions is defining what constitutes a conversion for your brand. Is it a product purchase, newsletter signup, or app download? Your objectives should be specific, measurable, achievable, relevant, and time-bound (SMART).

2. Use Unique Trackable Links: Use trackable links specific to each influencer in your campaign. These unique URLs allow you to accurately trace where your traffic is coming from.

3. Incorporate Discount Codes: Amplify the use of unique discount codes specific to each influencer. This not only encourages action from potential customers but also assists in tracking conversions.

4. Implement Pixels: Pixels are pieces of code on the brand’s website that can track visitor behavior. Implementing these can help provide insights on conversions coming from influencers’ content.

5. Utilize UTM Parameters: These are added to the end of a URL to track the source, medium, and campaign name, enabling a detailed tracking of conversions.

Platforms like Flinque offer comprehensive campaign tracking and analytics options that ease conversion tracking. Other platforms may offer similar features, but the choice of platform will greatly depend on the specific needs of your team.

Remember, designing a conversion tracking strategy requires constant testing, analyzing, and optimizing. It’s not a one-size-fits-all solution, but rather a necessary component for measuring the effectiveness and ROI of your influencer marketing campaign.