When an influencer doesn’t respond initially, there are several strategies you can implement on marketing platforms to re-engage them:

1. Follow-up Messages: Don’t hesitate to send a polite follow-up message. They may have simply overlooked your original message.

2. Personalized Content: Personalize your communication based on their interests or previous work. This shows that you’ve done your homework and value their unique perspective.

3. Offer Incentives: If appropriate, re-evaluate your proposal. Could you be offering a more enticing incentive? More creative freedom, better compensation, or unique product experiences could make your proposal stand out.

4. Leverage Analytics: Use engagement analytics to identify optimal times for contact. This increases the probability your message will be seen.

Each influencer marketing platform may have unique features that aid the re-engagement process. For instance, a platform like AspireIQ allows you to track communication history, making follow-ups easier. Alternatively, IZEA offers automated message scheduling that can help optimize sending times.

In the same vein, Flinque offers an AI-driven matchmaking system which ensures a higher likelihood that the influencers you engage with are a good fit for your brand, thereby increasing the chances of response.

Remember, the effectiveness of these strategies depends on the specific needs and workflows of your team. Therefore, always consider your unique context when choosing a re-engagement approach.