The 5 Klaviyo flows that drive most of your email revenue

Campaigns get the attention. Flows make the money. According to Klaviyo's 2026 benchmarks, flows produce nearly 41% of total email revenue while accounting for only 5.3% of sends. Revenue per recipient is nearly 18x higher than campaigns, and almost half of flow revenue comes from new buyers.

Yet in most accounts we audit, the core flows were built once, at launch, and never touched again. Here are the five that matter most, what a healthy version looks like, and the signs one is leaking.

Why flows outperform campaigns

A campaign interrupts someone. A flow answers something they just did: signed up, viewed a product, left a checkout, bought. That timing is why flow click rates sit far above campaign click rates in Klaviyo's data (5.58% vs 1.69% for a "good" account).

It also means a broken flow fails quietly. Nobody notices an email that never sends.

1. Welcome series

Trigger: joins your main list (usually from a signup form).

Job: turn a subscriber into a first-time buyer, and teach them why your brand is different.

What a healthy version looks like:

• First email sends immediately and delivers the promised offer
• 3 to 5 emails over 7 to 14 days, mixing brand story, bestsellers and social proof
• A purchase filter or split so buyers exit or move to a different path
• Separate branches for SMS subscribers if you collect phone numbers

Signs it is leaking:

• Buyers keep receiving "complete your first order" discounts
• The offer in email 1 no longer matches the offer on the signup form
• Every email is a discount reminder with no brand story

2. Abandoned checkout

Trigger: Started Checkout without Placed Order.

Job: recover shoppers who were one step from buying. This is usually the highest revenue per recipient flow in the account.

What a healthy version looks like:

• First email within 1 to 4 hours, while intent is still high
• 2 to 3 emails, with any incentive held back until the last one
• Dynamic product blocks showing the exact items and the cart link
• Filters excluding anyone who purchased since the trigger

Signs it is leaking:

• First email arrives 24 hours later
• The discount fires in email 1, training customers to abandon on purpose
• Tracking gaps: fewer Started Checkout events than your Shopify data suggests

That last one is more common than most brands think. Cookie expiry, ad blockers and logged-out browsing mean many shoppers are never identified, so the flow never triggers for them. Recovering those profiles is the core of our Flow Booster.

3. Browse abandonment

Trigger: Viewed Product, with no checkout or purchase after.

Job: catch interest earlier in the journey than cart abandonment.

What a healthy version looks like:

• 1 to 2 emails, softer tone than cart abandonment (no hard sell)
• The viewed product plus related recommendations
• A smart sending filter so the same person is not hit every time they browse
• Exclusion of anyone already in the checkout flow

Signs it is leaking:

• Not built at all (very common)
• No frequency limit, so heavy browsers get spammed and unsubscribe

4. Post-purchase

Trigger: Placed Order.

Job: turn a first order into a second one. This is where lifetime value is built.

What a healthy version looks like:

• A thank you and order expectations, not an instant upsell
• Product education: how to use it, how to get results
• A review request timed to delivery, not to order date
• A cross-sell or replenishment reminder based on what was bought
• Different paths for first-time buyers and repeat customers

Signs it is leaking:

• One generic sequence for every product and every customer
• Review requests landing before the package arrives
• No replenishment logic on consumable products

5. Winback

Trigger: a customer who has not purchased within your normal repurchase window (often 60 to 180 days, depending on the category).

Job: bring lapsed customers back before they are lost for good.

What a healthy version looks like:

• Timing based on your actual repurchase cycle, not a default 90 days
• 2 to 4 emails escalating from reminder to "what's new" to an offer
• A final email that moves non-responders to a sunset or suppression segment

Signs it is leaking:

• A single email with a discount and nothing else
• No sunset step, so dead addresses stay on the list and drag deliverability down

How to check your own flows in 15 minutes

1. List every live flow with its trigger and last edit date. Anything older than a year is a candidate for review.
2. Rank flows by revenue per recipient over the last 90 days, not by open rate.
3. Compare your flow revenue share against Klaviyo's 41% benchmark. Well below that usually means missing or broken flows.
4. Open each core flow and check for a buyer / non-buyer split and sensible delays.
5. Cross-check trigger volume against Shopify. If you had 1,000 checkouts started but Klaviyo shows 400 Started Checkout events, the problem is tracking, not copy.

You can run most of this in minutes with Claude connected to Klaviyo. We walk through the exact prompts in our guide to auditing your Klaviyo account with Claude.

Fix the foundation before adding more

Brands often respond to flat email revenue by sending more campaigns. In most accounts, the faster win is fixing the five flows above. They run every day, for every new subscriber and customer, without anyone pressing send.