During the execution phase of an influencer campaign, a variety of challenges could appear:

1. Inconsistent Messaging: The way influencers share your brand message may not align with your original intent. This can be due to the lack of detail in briefs, or due to creative freedom adopted by the influencers which makes the brand message lose its essence.

2. Performance Tracking: Gathering campaign data from multiple influencers manually can be a tedious affair, often resulting in inaccuracies.

3. Poor Engagement: An influencer’s posts may receive lower engagement than expected. Usually because, the influencer market is saturated and audience may become oblivious to sponsored posts.

4. Bad Timing: Posting timing for the influencer’s audience might not coincide with your target audience, leading to lesser engagement and reach.

Platforms like Flinque are designed to address these challenges. For example, they provide analytics to help brands understand influencer audience demographics, peak engagement hours etc. Plus, they have campaign tracking features to ensure consistent data collection.

Keep in mind that each platform has its unique strengths. Use this information to make the right choice on the basis of your specific needs. Always begin by clearly outlining your campaign goals, and use feedback and analytics from past campaigns to further refine your strategy.