Conditional Splits in Klaviyo: The Advanced Tactic That Doubles Flow Revenue

Most Klaviyo flows are built like highways — one lane, one direction, everybody gets the same thing. A new subscriber enters, they get Email 1, wait 2 days, get Email 2, wait 3 days, get Email 3. Done.

And that works. Kind of. But you're sending the same message to a first-time buyer spending $30 and a VIP customer spending $300. Same message to someone who bought skincare and someone who bought supplements. Same timing for someone who opens every email and someone who hasn't opened one in 60 days.

That's not personalization. That's a mail merge with extra steps.

Conditional splits change everything. They turn a single-lane highway into a network of paths — each one tailored to who the customer is, what they've done, and what they're likely to do next.

At GOSH Digital, conditional splits are the single biggest lever we pull when optimizing existing Klaviyo flows. Across 150+ brands, adding strategic conditional splits to already-running flows has doubled flow revenue on average. Not 10% improvement. Double.

Let me show you exactly how.

What Is a Conditional Split (And How It Actually Works)

A conditional split is a yes/no branch in your Klaviyo flow. When a person reaches that point in the flow, Klaviyo checks a condition — "Does this person meet X criteria?" — and routes them down one of two paths.

Yes path: The person meets the condition. They get one set of emails. No path: The person doesn't meet the condition. They get a different set of emails.

It's like an if/then statement for email. And you can stack multiple splits to create deeply personalized paths through a single flow.

Simple example: In your abandoned cart flow, you add a conditional split checking whether the cart value is over $100.

• Over $100? Send a high-touch recovery sequence with phone support offer
• Under $100? Send a standard 3-email recovery with discount ladder

Same trigger. Same flow. Completely different treatment based on what the customer left behind.

The 7 Conditional Splits That Generate the Most Revenue

After building and optimizing flows across 150+ brands, these are the splits that consistently produce the biggest revenue lift:

Split 1: Cart Value (High vs. Low)

Where to use it: Abandoned cart flow The condition: Cart value is over [your threshold] — typically 2x your AOV

A customer who abandoned a $250 cart needs different treatment than someone who left a $30 item behind. The high-value abandoner is worth more effort, more urgency, and potentially a better offer.

High-value path:

• Email 1 (1 hour): Product-focused reminder with premium messaging
• SMS (2 hours): Quick notification
• Email 2 (24 hours): Social proof — reviews and testimonials for the specific product
• Email 3 (48 hours): Personal offer — "We want to make this easy: free expedited shipping on your order"

Standard path:

• Email 1 (1 hour): Simple reminder with cart contents
• Email 2 (24 hours): Mild urgency — "Your cart is waiting"
• Email 3 (72 hours): Small discount — 10% off

Revenue impact: This single split typically increases abandoned cart flow revenue by 25-40%. The high-value path converts at a much higher rate because the messaging matches the purchase's significance.

Split 2: New Customer vs. Repeat Customer

Where to use it: Welcome flow, abandoned cart flow, browse abandonment flow The condition: Has placed at least 1 order (yes/no)

A first-time buyer needs convincing. A repeat customer needs appreciation. Treating them the same is leaving money on the table.

In the welcome flow:

First-time subscriber (no orders yet):

• Heavy emphasis on social proof, reviews, and trust-building
• First purchase incentive (10-15% off)
• Brand story and values
• 5-7 email sequence over 10-14 days

Repeat customer who subscribes to a new list:

• Skip the intro — they already know you
• Cross-sell based on purchase history
• VIP recognition messaging
• Shorter sequence — 2-3 emails

Revenue impact: Segmenting welcome flows by purchase history increases flow revenue by 30-50%. Repeat customers convert faster with fewer emails, and new subscribers convert better with more nurturing.

Split 3: Predicted CLV (VIP vs. Standard)

Where to use it: Post-purchase flow, winback flow, any promotional flow The condition: Predicted CLV is in top 20% (use Klaviyo's predictive analytics)

Your highest-value customers deserve a different experience. Full stop.

In the post-purchase flow:

High-CLV customers:

• Thank-you email with exclusive early access to new products
• Skip the review request for 2 weeks (let them enjoy the product first)
• Personalized cross-sell based on browsing and purchase history
• VIP program invitation
• No discount incentives — they buy at full price

Standard customers:

• Standard thank-you email
• Review request at 7 days
• Cross-sell with a small incentive (10% off next order)
• Referral program invitation with discount incentive

Split 4: Product Category Purchased

Where to use it: Post-purchase flow, cross-sell flow, replenishment flow The condition: Last ordered product is in [specific collection/category]

This is where personalization gets really powerful. Someone who bought skincare shouldn't get the same post-purchase content as someone who bought supplements.

Example for a health and beauty brand:

Skincare purchasers:

• Post-purchase: "How to build your skincare routine" content
• Cross-sell: Complementary skincare products
• Replenishment: Based on typical product usage timeline (30, 60, 90 days)

Supplement purchasers:

• Post-purchase: "How to get the most from your supplements" content
• Cross-sell: Complementary supplements
• Replenishment: 30-day reminder (most supplements are monthly)

Haircare purchasers:

• Post-purchase: Hair care tips content
• Cross-sell: Full haircare routine products
• Replenishment: 45-60 day cycle

Revenue impact: Category-based post-purchase splits increase cross-sell revenue by 40-60%. Relevant recommendations convert dramatically better than generic ones.

Split 5: Email Engagement Level

Where to use it: Campaign-triggered flows, winback flows, promotional flows The condition: Has opened or clicked an email in the last 30 days (yes/no)

Sending the same email to engaged subscribers and dormant subscribers is a deliverability risk. ISPs notice when you send to people who never open, and it hurts your sender reputation for everyone.

Engaged subscribers (opened/clicked in 30 days):

• Full content: Rich emails with images, multiple sections, storytelling
• Higher frequency: They can handle more sends
• Regular promotional offers

Disengaged subscribers (no opens/clicks in 30+ days):

• Simpler content: Plain text or minimal design (gets through spam filters better)
• Lower frequency: Don't send them every campaign
• Re-engagement focused: "We miss you" messaging or a stronger offer to reignite interest

Deliverability impact: This split protects your sender reputation, which protects deliverability for your entire list. Better deliverability means higher open rates across the board, which means more revenue from every email you send.

Split 6: Number of Orders (Lifecycle Stage)

Where to use it: Any flow that touches customers at different lifecycle stages The condition: Number of orders placed is [1, 2-3, 4+]

A one-time buyer, a two-time buyer, and a loyal repeat customer are at completely different stages of their relationship with your brand. The messaging should reflect that.

First-order customers:

• Focus: Validate their purchase decision, reduce buyer's remorse
• Content: Product tips, care instructions, brand story
• Goal: Get the second order (the hardest conversion in eCommerce)

2-3 order customers:

• Focus: Deepen the relationship, expand their product usage
• Content: Cross-sells, complementary products, loyalty program
• Goal: Build habit and routine purchasing

4+ order customers:

• Focus: Reward loyalty, maintain the relationship
• Content: Exclusive access, VIP perks, referral incentives
• Goal: Turn them into advocates

Split 7: SMS Consent

Where to use it: Every flow that has an SMS component The condition: Has SMS consent (yes/no)

This is a functional split that most brands overlook. If someone hasn't opted into SMS, sending them an SMS message wastes money and can violate compliance rules.

For customers with SMS consent: include SMS touchpoints in the flow alongside emails. SMS + email together recover 30-40% more than email alone.

For customers without SMS consent: rely on email only. Consider adding an SMS opt-in ask in one of the later emails: "Want faster updates? Get order notifications and exclusive deals by text."

How to Stack Multiple Splits

The real power comes from combining splits. Here's what a fully optimized abandoned cart flow looks like with stacked conditional splits:

Entry: Someone abandons their cart

Split 1: Cart value over $100?

• YES path, Split 2: Has previous orders?
  • YES: Send high-value, personalized recovery (reference past purchases, no discount needed)
  • NO: Send high-value, trust-building recovery (social proof heavy, free shipping offer)
• NO path, Split 2: Has previous orders?
  • YES: Send quick, casual reminder (they know the brand, light touch)
  • NO: Send standard recovery sequence (discount ladder: no discount, then 10%, then 15%)

That's four distinct paths through one flow, each tailored to the customer's value and relationship stage. Four paths that feel personalized versus one generic sequence that feels mass-produced.

Setting Up Conditional Splits in Klaviyo (Step by Step)

1. Open your flow in the Klaviyo flow builder
2. Drag a "Conditional Split" component into the flow where you want the branch
3. Define the condition (e.g., "Value of cart is at least $100")
4. Build out the YES path with its own emails and time delays
5. Build out the NO path separately
6. For stacked splits, add another Conditional Split component within a path

Pro tip: Label your splits clearly. "Cart over $100" is better than "Split 1." Future you (or your team) will thank past you when trying to understand the flow logic.

Testing tip: Before going live, run a small test. Create test profiles that meet each split condition and send test emails to verify each path works correctly.

Measuring the Impact

After implementing conditional splits, measure these metrics:

Revenue per recipient (RPR) by path: Compare RPR for each split path. The high-value cart path should have significantly higher RPR than the standard path. If it doesn't, your messaging needs work.

Conversion rate by path: Track which paths convert best. This tells you where your messaging is strongest and where it needs improvement.

Overall flow revenue before/after: The ultimate metric. Compare total flow revenue for the 30 days before you added splits versus the 30 days after. Expect a 40-100% improvement.

Conditional splits turn generic automations into personalized conversations. They're the difference between "we sent an email" and "we sent the right email to the right person at the right time." And that difference is where the revenue lives.

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Mark Cijo is the founder of GOSH Digital, a Klaviyo Gold Partner agency that's driven over $70M in revenue for 150+ eCommerce brands. Want us to optimize your Klaviyo flows with conditional splits? Book a free strategy call.