## 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** |
|---|---|
| **50k+ “active” Klaviyo profiles** | Pushed the merchant into the 50k 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** |
|---|---|
| **1. Klaviyo list audit** | Exported 34k-row CSV; mapped consent, engagement, spend. |
| **2. Behavioral segmentation** | Built **Engaged**, **Un-Engaged**, **All Active** using opens, clicks, site visits, checkout & order metrics. |
| **3. Two-email win-back series** | “Still want the perks?” → urgency offer four days later. |
| **4. Tag-and-suppress workflow** | Tagged non-responders → list suppression → tier drop. |
| **5. Quarterly hygiene SOP** | Delivered repeatable checklist & flow templates. |

### 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](/klaviyo-list-cleaning-guide-lower-costs-boost-deliverability-for-shopify-and-shopify-plus-stores/) 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** – 10k buyers revived rather than deleted.
3. **Tag-first suppression** – Future-proofs against accidental revenue loss.
4. **Lean, global model** – Bay Area expertise, remote flexibility.

## 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 →](/contact/)**

*Stop paying for ghosts, email the customers who convert.*

Human version: https://nr10.com/klaviyo-list-cleaning-case-study/