Engaged segment vs full-list holiday send
Your client is a subscription beauty brand with 85,000 Klaviyo profiles. Its main list has 120,000 subscribers, but only 22,000 opened or clicked an email in the last 60 days and 9,000 more engaged in the last 180 days. Last week the team sent a new-product campaign to the full list. Results: 0.4% click rate, 0.10% unsubscribe rate, 3.1% bounce rate, and 0.08% spam-complaint rate. The growth lead wants to keep mailing everyone because 'the list is an asset,' but the CRM manager wants to send only to the 60-day engaged segment. You also have a sunset flow that has never been turned on. The next campaign is a high-margin holiday gift set with limited inventory, and the team needs a decision within two days. You cannot change the ESP or rebuild the data warehouse before the send.
1. Define a send segment for the holiday campaign. Include at least one inclusion rule, one exclusion, and one engagement window, and explain the trade-off in list size.
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Use a segment such as: include profiles where clicked email at least once in the last 180 days OR opened email at least once in the last 60 days; AND is in main list; AND email consent is subscribed; exclude unsubscribed, bounced, marked spam, and placed order in the last 7 days if the gift set is not a replenishment item. The trade-off is reach vs deliverability: the 60-day engaged group is smaller but safer; the 180-day click group adds reach with less open-rate inflation. Do not include the full 120,000 list just because it is an asset. For a limited-inventory holiday send, a smaller, higher-intent segment protects sender reputation and concentrates revenue.
2. What is the risk of judging engagement only by opens, and how would you adjust the segment to reduce that risk?
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Opens are a weak proxy because privacy features and image blocking can register opens without a human reading, and bots can inflate them. Weight clicks, site activity, and revenue more heavily. A safer segment requires a click in 180 days OR a product view or add-to-cart in 90 days, and excludes profiles with no click in 365 days. Also compare campaign results by engagement tier. If the 60-day open-only group performs like the unengaged group, do not treat opens as intent. This reduces the risk of mailing inflated openers and hurting deliverability.
3. How would you use the sunset flow with the holiday campaign without suppressing too many potential buyers?
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Turn on the sunset flow only after the holiday campaign and only for profiles with no click, no site visit, and no purchase in 120-180 days. Use a multi-step flow: a reactivation email, a preference-update email, and a final warning before suppression. Exclude recent purchasers and anyone who clicked in the last 90 days, because they are still valuable. The risk is suppressing a real buyer who simply did not open; the safeguard is to require no click and no purchase, not just no open. Measure reactivation rate and complaint rate before expanding the sunset window.