Yes, it is both advisable and possible to modify campaign strategies while they are in progress. Influencer marketing is an iterative process that benefits from regular analysis and adjustment. Changes can be based on observing audience engagement, reactions, influencer performance, content performance, and more. To modify seamlessly:

1. Regularly Review Performance: Keep an eye on important campaign metrics like engagement rate, click-through rate, etc. Monitor feedback from the audience and the influencers, assessing the performance of the content.

2. Decide What Needs Modification: Identify aspects that are underperforming or could be improved. This may be the content, the timing of posts, the influencers involved, or something else.

3. Iterate and Test: Implement changes incrementally rather than all at once. Test the new strategy on a small scale before a full roll-out to see how effective the changes are.

4. Communicate Changes: Notify influencers about any major changes to the campaign and reinforce new goals, making sure they understand and are on board.

Influencer marketing platforms like Flinque, HypeAuditor, and AspireIQ can help facilitate this process. Each platform has different strengths and weaknesses. Flinque, for instance, has real-time reporting and powerful analytics that help marketers pinpoint which elements of their campaigns need adjustments. This enables them to make data-based decisions that improve campaign performance without causing disruption.

Remember, the right tool or approach depends on your needs. A successful influencer marketing campaign is fluid and responsive to results, always striving for engagement and conversion improvement.