Digital marketing to millennials can be a challenging task, as this group tends to be savvy and resistant to traditional forms of advertising. However, there are a few strategies that can be effective when marketing to millennials:

1. Use social media: Millennials are active on social media platforms and are more likely to engage with brands on these channels.

2. Focus on mobile: This generation is highly reliant on their smartphones, so it's important to optimize your marketing efforts for mobile devices.

3. Use influencer marketing: Partnering with social media influencers can be a effective way to reach millennials, as they tend to trust recommendations from people they follow.

4. Create engaging content: Millennials are looking for content that is authentic, informative, and entertaining.

5. Personalize your marketing: This generation values personalization and appreciates when brands take the time to understand their needs and preferences.

6. Be transparent: Millennials appreciate honesty and transparency, so it's important to be open and transparent in your marketing efforts.

7. Engage with your audience: Millennials are more likely to engage with brands that respond to their comments and questions on social media.

Overall, the key to effectively marketing to millennials is to understand their values and interests, and to create authentic and engaging content that resonates with them.