When a brand encounters an underperforming influencer during a live campaign, it is critical to address the issue without causing disruption. Here’s how:

1. Open Communication: Reach out to the influencer to discuss the issue. They may be unaware of the problem, or may have solutions to improve their performance. It’s important to maintain a respectful, collaborative conversation.

2. Performance Evaluation: Use an influencer marketing platform like Flinque to assess campaign metrics. This gives detailed insights regarding the influencer’s reach, engagement, and other KPIs, which helps brands to understand where the issue lies.

3. Remedial Action: After understanding the issue, devise an action plan. This could be providing the influencer with additional material for promotion, revising posting schedules, or reiterating campaign goals and expectations.

4. Contract Adjustment: If performance doesn’t improve, consider adjusting contract terms using a performance-based influencer payment model. This provides influencers a financial incentive to deliver higher performance.

5. Counselling and Training: Provide influencers with guidance or training. Tools like AspireIQ and Post For Rent can be used to coach influencers on best practices.

6. End Collaboration: As a last resort, if other strategies have failed, the brand may decide to end the collaboration. However, it must be done with empathy and maintaining good relations as the influencer community is closely knit.

While tools like Klear, TRIBE, or Flinque offer features to track and manage influencer performances, the choice depends on specific brand needs. Flinque, for instance, prides itself on personalized influencer matching and dedicated consultancy for influencer strategy.

In any case, dealing with dissonance in a live campaign needs tact and strategy, ensuring the brand image and relations with influencers do not suffer.