1. Prioritize High-Value Segments: Focus on segments that show clear differences in behavior and have enough subscribers to justify the effort. For example, segmenting by purchase frequency or customer lifetime value might be more effective.
2. Test and Iterate: Use A/B testing to determine if more granular segments actually yield better results. If not, consider merging some segments.
3. Use Dynamic Content: Instead of creating separate emails for each segment, use dynamic content blocks within a single email to personalize sections based on subscriber data.
4. Benchmark Performance: Regularly review the performance of your segments. If certain segments consistently underperform, it might be worth combining them.