Klaviyo List-Cleaning Case Study
How a Shopify brand cut Klaviyo costs by 31 % and re-engaged 10 000 dormant shoppers in two weeks
SEO phrases naturally woven in:
Klaviyo list cleaning, Klaviyo suppression, reduce Klaviyo cost, Bay Area Shopify email marketing agency, Palo Alto ecommerce consultant, Shopify Plus email automation, email deliverability optimization, email list hygiene.
About #10
#10 is a Palo Alto-based ecommerce consultancy. We specialize in Shopify & Shopify Plus development, CRO, and Klaviyo automation for brands around the world—without the overhead of a big downtown office.
The Problem
| Pain-point | Impact |
| 50 k+ “active” Klaviyo profiles | Pushed the merchant into the 50 k billing tier ($545 / mo). |
| Mixed consent states | Deliverability risk, low open rates. |
| Dormant customers | Dead weight in abandoned-cart and win-back flows. |
#10’s List-Hygiene Plan
| Step | What we did | SEO takeaway |
| 1. Klaviyo list audit | Exported 34 k-row CSV; mapped consent, engagement, spend. | “Klaviyo list audit for Shopify merchants” |
| 2. Behavioral segmentation | Built Engaged, Un-Engaged, All Active using opens, clicks, site visits, checkout & order metrics. | “Behavioral segmentation in Klaviyo” |
| 3. Two-email win-back series | “Still want the perks?” → urgency offer four days later. | “Email win-back campaign for dormant subscribers” |
| 4. Tag-and-suppress workflow | Tagged non-responders → list suppression → tier drop. | “Reduce Klaviyo cost by suppressing unengaged profiles” |
| 5. Quarterly hygiene SOP | Delivered repeatable checklist & flow templates. | “Klaviyo list hygiene SOP” |
Results (14 days)
| KPI | Before | After |
| Active profiles billed | 50 318 | 33 027 |
| Engaged profiles | 20 562 | 30 814 (+10 252) |
| Monthly Klaviyo fee | $545 | $375 (-$170 / mo) |
| Inbox placement | 90 % | 94 % |
| Spam-complaint rate | 0.04 % | 0.03 % |
Annual savings: $2 040—money now re-allocated to paid social tests.
Why It Worked
- Data over guesswork – Segments tied to real behavior, not vanity metrics.
- Re-permission before suppression – 10 k buyers revived rather than deleted.
- Tag-first suppression – Future-proofs against accidental revenue loss.
- Lean, global model – Bay-Area expertise, remote flexibility.
Should You Use Screenshots?
| Screenshot | Purpose | Blur |
| Klaviyo Account Usage (before/after) | Visual proof of tier drop. | Hide account ID & dollar amounts. |
| Engaged Profiles segment builder | Shows engagement criteria. | Obscure list name & any PII. |
| Billing-tier table | Reinforces $170 / mo savings. | Redact last four digits of card. |
Two or three blurred images add credibility without exposing client data.
Ready to Turn List Bloat into List Profit?
Whether you need a Bay-Area Klaviyo expert or a remote partner who has proven results in email list hygiene for Shopify Plus, #10 can help you:
- Audit your Klaviyo account
- Restore inbox placement & engagement
- Cut ESP overhead in weeks, not months
Book a free 15-minute strategy call → [10-link-here]
Stop paying for ghosts—email the customers who convert.
