How to compare email performance across stores fairly

A store with 200,000 subscribers will out-earn one with 8,000 every month. Compare rates, not totals, to see which stores really need help.

The Wizel Team

Email marketing strategist · · 1 min read

Four brands' products on colour-block plinths of different heights: a Popwell can, an Azur perfume, a Marlo sneaker and an Olwen candle

On this page
  1. Compare rates, not totals
  2. Group stores before you rank them
  3. Look for gaps, not just rankings
  4. Ask your own numbers in Wizel
  5. Frequently asked

Agencies and multi-brand owners face the same question every month: across all these stores, each with its own Klaviyo account, which ones are doing well? Ranking them by email revenue answers a different question. The biggest list wins, every time.

Compare rates, not totals

1 rule

compare rates, not totals, when stores differ in size

  • Revenue per recipient, for campaigns and flows separately.
  • Click rate, the cleaner engagement number now that Apple Mail inflates opens.
  • Unsubscribe and spam complaint rates, to spot a store that's wearing its list out.
  • Email's share of the store's total revenue, to see how much the business leans on email.

These put a candle shop with 5,000 subscribers and an apparel brand with 300,000 on the same footing.

Group stores before you rank them

Even rates don't compare cleanly across very different businesses. A store selling $400 furniture will usually have a lower placed order rate than one selling $30 snacks, and that doesn't mean its emails are worse. Compare each store with similar stores: same category, similar prices, similar list size. Better still, compare each store with its own last quarter.

Look for gaps, not just rankings

The most useful cross-store view is often a checklist rather than a league table. Which stores are missing an abandoned checkout flow? Which haven't sent a campaign in three weeks? Which have a spam complaint rate creeping toward 0.1%? Those gaps are quick wins, and they matter more than whether a store ranks fourth or fifth.

A league table tells you who's ahead. A list of gaps tells you what to fix on Monday.

Ask your own numbers in Wizel

Wizel connects each client's Klaviyo account in one workspace, so the chat can answer across all of them at once:

  • “Compare campaign performance across all my stores.”
  • “Rank my stores by revenue attribution.”
  • “Which store is missing key automation flows?”

Frequently asked questions

What's the fairest metric for comparing email across stores?

Revenue per recipient, split into campaigns and flows. It accounts for list size. Pair it with click rate and unsubscribe rate, so a store that earns by over-sending doesn't look like a winner.

Should I compare clients with industry benchmarks?

Only as a loose sense check. Benchmarks blend very different businesses. A store's own trend, and how it compares with similar stores you manage, tells you more.

How often should an agency review performance across stores?

Monthly for reporting, with a weekly look at list health, like bounces and spam complaints, because those problems build quickly.

Written by

The Wizel Team

Email marketing strategist

Written and reviewed by the Wizel editorial team: operators who run Klaviyo email programs for Shopify brands.

The ecommerce email team for agencies and stores.

Wizel plans the strategy, fills the calendar, designs every email, and reports what it earned. You approve.

Draft my first month

Works with Shopify and Klaviyo


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Related terms: Email deliverability, Sender reputation