Klaviyo List-Cleaning Case Study

Klaviyo List-Cleaning Case Study

How a Shopify brand cut Klaviyo costs by 31 % and re-engaged 10 000 dormant shoppers in two weeks

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.

Want the full method behind these results? Read our Klaviyo list cleaning guide for the audit, segmentation, win-back, and suppression steps in detail.

Why It Worked

1. Data over guesswork – Segments tied to real behavior, not vanity metrics.
2. Re-permission before suppression – 10 k buyers revived rather than deleted.
3. Tag-first suppression – Future-proofs against accidental revenue loss.
4. 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.