You can recognize them by their recent order value. If someone spends a lot of amount only once, it doesn’t mean they will always spend that much. Take into account at least 3 orders for each group of spenders.
Your job is to personalize what you offer them. Don’t offer the most expensive product to budget-friendly spenders (and also don’t forget to include discounts to increase the frequency of their purchasing).
Here’s one more thing: regardless of who you’re offering to, test different discount policies and types of discounts (percentage vs. monetary discounts, exclusions, time-limited offers, etc.).
On the other hand, if you don’t offer more high-priced products to big spenders, you could be leaving some big money on the table. Also, consider some VIP discounts to make them feel appreciated.
Test which products convert the best and how many products are the most optimal to list in your email for big spenders. Again, we recommend that you test different discount policies and types of discounts to know your audience even better.