How early should I reach out to influencers?

As an e-commerce brand looking to leverage influencer marketing, I'm struggling to determine the optimal timing for reaching out to potential influencers. I want to ensure I'm not too early or too late in my outreach, and I need a strategic approach that maximizes the chances of successful collaboration. My goal is to understand the best practices for influencer engagement, considering factors like campaign planning, content creation, and alignment with product launches or seasonal promotions.