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Referral and loyalty data, synced both ways with Klaviyo
The Friendbuy + Klaviyo integration syncs referral and loyalty activity into Klaviyo in real time — opted-in emails and phone numbers, personal referral links (PURLs), reward codes, points balances, and tier status — as profile properties and events you can segment and automate on. And it works in both directions: customer activity in Klaviyo can trigger rewards in Friendbuy.
Bi-directional
Friendbuy events power Klaviyo flows; Klaviyo activity triggers Friendbuy rewards.
No engineering required
One-time OAuth install from the Friendbuy dashboard. Marketers run everything after.
Consent-safe by default
Contacts sync only with the opt-in box checked. SMS follows Klaviyo double opt-in.
Real-time decisions
Klaviyo Segment membership is checked live, before loyalty rewards are issued.
What Friendbuy syncs to Klaviyo
Friendbuy writes referral and loyalty data to each customer’s Klaviyo profile as custom properties — every property is prefixed Friendbuy, and every profile is attributed with $source = Friendbuy. Properties update in place as customers share, earn, and redeem, so segments and merge fields always reflect the current state.
| Data | Klaviyo profile properties | What it enables |
|---|---|---|
| Contacts & consent | Opted-in email addresses and phone numbers, added to the Klaviyo lists you choose | Referral becomes a real email and SMS subscriber-growth channel, not just an acquisition tactic. |
| Referral identity | Friendbuy Referral Link · Friendbuy Campaign ID · Friendbuy Campaign Name · Friendbuy Customer Name · Friendbuy Date of Last Share | Drop each customer’s personal referral link (PURL) into any email or text as a dynamic field, and time sends around actual sharing behavior. |
| Referral performance | Friendbuy Referred Revenue · Friendbuy Referred Purchases | Segment your proven advocates — the customers already generating revenue — and treat them like the VIPs they are. |
| Rewards | Friendbuy Coupon Code · Friendbuy Coupon Value · Friendbuy Coupon Status · Friendbuy Coupon Currency · Friendbuy Coupon Campaign ID | The right code, value, and redemption status are always on the profile — ready for reward delivery and redemption-reminder flows. |
| Loyalty status | Friendbuy Member Tier Name · Friendbuy Points Balance · Friendbuy Account Credit Balance · Friendbuy Loyalty Opt-In Date · Friendbuy Customer Birthday | Balance reminders, tier-progress nudges, birthday rewards, and win-back offers driven by live loyalty data rather than a calendar. |
Events you can build flows and segments from
Friendbuy sends named custom events to Klaviyo the moment they happen — no batch exports, no nightly syncs. Each event carries the properties a flow needs to personalize the message it triggers.
Referral events
| Event | Fires when | Key properties |
|---|---|---|
| Friendbuy Referral Share | An advocate shares their referral offer with a friend via email, SMS, link, or social | Share channel, campaign name and ID, advocate name |
| Friendbuy Referral Advocate Reward Earned | A referred friend converts and clears every fraud check and business rule, earning the advocate a reward | Coupon code, reward value, currency, campaign, customer name |
| Friendbuy Referred Friend Incentive Earned | A referred friend completes the conversion event and earns their incentive | Coupon code or gift card, value, currency, campaign, friend name |
Loyalty events
| Event | Fires when | Key properties |
|---|---|---|
| Loyalty Reward Earned from a Purchase | A member’s purchase clears the earning event’s rules and a reward is issued | Reward value, points or credit, campaign, order ID |
| Loyalty Reward Earned from Joining Program | A member enrolls in the loyalty program and earns a joining reward | Reward value, points or credit, campaign |
| Loyalty Reward Earned from Referring a Friend | A member earns a loyalty reward for a successful referral | Reward value, points or credit, campaign |
| Loyalty Reward Earned from a Sign Up | A member completes a designated sign-up event and earns a reward | Reward value, points or credit, campaign |
| Loyalty Reward Earned from a Custom Event | A member completes a merchant-defined custom event and earns a reward | Custom event name, reward value, custom attributes |
| Friendbuy Member Tier Changed | A member moves up or down between loyalty tiers | New tier name, custom attributes |
Loyalty event names above are prefixed “Friendbuy” in Klaviyo. Full definitions live in the setup guide.
Flows you can build in Klaviyo
Every event and property above is available in Klaviyo’s flow builder the moment it lands. Trigger on a Friendbuy event, split on a Friendbuy property, and merge the customer’s own referral link, coupon code, or points balance into the message — built exactly the way your team builds every other flow.
Referral flows
| Flow | Triggered by | What it sends |
|---|---|---|
| Post-purchase referral invite | Fulfilled Order, split onFriendbuy Referral Link | The advocate’s personal link, merged into the email a few days after delivery. |
| Post-review referral ask | A positive product review | The referral offer while sentiment is high, with the link already in the message. |
| Referral SMS promotion | Fulfilled Order, SMS-subscribed segment | A short text carrying the advocate’s link, no landing-page hop required. |
| One-time referral campaign | Manual send to any Klaviyo segment | A batch email or SMS with each recipient’s own link merged in. |
| Advocate reward delivery | Friendbuy Referral Advocate Reward Earned | The coupon code and value, by email or SMS, the moment the reward clears. |
| Referred-friend welcome | Contact synced to your friend list | A welcome series written for people who arrived through a referral. |
Loyalty flows
| Flow | Triggered by | What it sends |
|---|---|---|
| Points balance reminder | Loyalty properties on the profile | The member’s current points balance, merged into email or SMS. |
| Tier upgrade congratulations | Friendbuy Member Tier Changed | The new tier, what it unlocks, and what the next tier takes. |
| Tier-targeted campaign | Tier name property on the profile | A campaign sent to one tier only, such as VIP early access. |
| Redeem-your-reward text | Any Loyalty Reward Earnedevent | An SMS reminder carrying the coupon code that was just issued. |
| Subscribe-to-earn confirmation | A Klaviyo email or SMS subscribe | Points issued in Friendbuy for joining, confirmed back from Klaviyo. |
| Review-to-earn thank you | A submitted product review | Points issued for the review, plus the thank-you message that follows. |
Step-by-step build guides for each of these flows live in the Friendbuy help center.
What marketers run with it
Once referral and loyalty land in Klaviyo, they behave like every other first-party signal — something to segment, trigger, and test against. These are the plays brands run most.
Grow email and SMS lists from referral
Every opted-in advocate and friend flows into your Klaviyo lists the moment they’re captured, then routes into welcome flows built for referred customers.
Put personal referral links in every message
Each customer’s PURL is a profile property, so any flow or campaign can carry it — order confirmations, post-review follow-ups, promos. The strongest referral ask follows a positive experience.
Run loyalty as lifecycle messaging
Points-balance reminders, “almost at the next tier” nudges, birthday rewards, and redemption prompts — each triggered by live loyalty events and properties, not a promotional calendar.
Gate loyalty rewards on Klaviyo segments
Add Klaviyo Segment conditions to any earning event — is in / is not in, multiple segments per rule. Friendbuy checks membership in real time before issuing rewards, so you can reward only recent subscribers or exclude anyone who earned in the last five days.
Reward subscribing itself
Because the loop runs both ways, joining your Klaviyo email or SMS list can be a loyalty earning event — turning list growth into a rewarded behavior.
Segment and win back by advocacy
Referred revenue and referred purchases live on every profile. Build segments of proven advocates for VIP treatment, or drop points into a churn-risk segment and measure what it recovers.
Referral, inside Klaviyo customer hub
Friendbuy-powered refer-and-earn offers can appear directly inside Klaviyo customer hub — the personalized, logged-in experience brands give their customers. The referral card sits alongside orders, support, and product content, so the offer is present exactly where customers already manage their relationship with your brand.
The capability is available to any merchant running Friendbuy alongside Klaviyo customer hub — a native card in the hub, powered by the same Friendbuy platform that runs widgets, links, and rewards everywhere else.
Receipt events for omnichannel loyalty
For brands running receipt-based loyalty, Friendbuy sends an event to Klaviyo whenever a receipt is approved or rejected — whether the decision was automatic or manual. Each event carries store details, transaction amounts, and line-item product data, plus cumulative customer metrics like lifetime approved receipts and points redeemed.
That turns in-store purchases into the same kind of lifecycle fuel as ecommerce orders: thank-you flows that reference the store and amount, and segments built on where people actually shop. It’s the piece that makes loyalty work when purchases happen at retail, not just in your cart. Learn how receipt scanning works in Friendbuy.
Consent, handled the way compliance teams expect
Friendbuy syncs a contact to Klaviyo only when the customer checks the opt-in box on the advocate referral widget or friend welcome widget. Email consent is true on every send, because the customer granted it. Phone numbers are subscribed only after the customer confirms through Klaviyo’s double opt-in (DOI) process, in line with mobile carrier requirements.
In practice: single-opt-in lists for email, double-opt-in lists for SMS, and marketing that targets subscribed segments. Referral grows your lists without creating a consent liability — a distinction your legal team will appreciate before your deliverability team does.
Set up in three steps — no developer needed
Install and authorize
In Friendbuy, go to Settings → Integrations and open the Klaviyo tile. Click Install Integration and authorize on Klaviyo’s permissions page. It’s a one-time OAuth connection — no API keys to copy, no code to deploy.
Create your lists in Klaviyo
Set up separate advocate and friend lists: single opt-in for email, double opt-in for SMS. Two minutes in Klaviyo’s Lists & Segments, done before you map.
Map lists and go live
Back in Friendbuy, select which lists receive advocate and friend contacts, click Update Integration, and data starts flowing. Full walkthrough in the help center.
From there, marketing owns the whole system: campaigns, incentives, placements, and Klaviyo flows all change without an engineering ticket — which matters most when timing does.
Proof from brands running Friendbuy and Klaviyo together
30x
Return on its referral program, with a 21% higher AOV from referred friends and 20–40% monthly email and SMS subscriber growth through Klaviyo.
~20%
Of new customers arrive through referral — advocacy that was already happening in the customer base, made actionable.
13.6x
Return on investment from redeemed loyalty member revenue, with quiz, referral, and loyalty signals flowing into Klaviyo for email personalization.
“What makes Friendbuy so powerful is its seamless integration into our ecosystem. It connects effortlessly with Digioh, Klaviyo, and Recharge, turning quiz and referral signals into actionable loyalty data. It’s flexible, easy to optimize, and fully customizable to meet our brand’s goals.”
Whether you’re launching your first referral program or scaling an established loyalty program, the integration makes both part of every Klaviyo lifecycle journey.
Frequently asked questions
What is the Friendbuy + Klaviyo integration?
It’s a bi-directional connection that syncs Friendbuy referral and loyalty activity into Klaviyo as profile properties and events — opted-in contacts, personal referral links, reward codes, points, and tiers — and lets Klaviyo customer activity trigger rewards back in Friendbuy.
Which direction does data flow?
Both. Friendbuy pushes referral and loyalty properties and events into Klaviyo to power segmentation, email, and SMS. In the other direction, Klaviyo data drives Friendbuy: segment membership is checked in real time before loyalty rewards are issued, and subscribing can itself earn a reward.
What Friendbuy properties and events appear in Klaviyo?
Properties include the customer’s personal referral link, campaign details, coupon code and value, referred revenue and purchases, tier name, points and credit balances, and loyalty opt-in date. Events cover referral shares, advocate rewards, friend incentives, five loyalty reward types, and tier changes.
How does the integration handle email and SMS consent?
Contacts sync only when the customer checks the opt-in box on a Friendbuy widget, so email consent is true on every send. Phone numbers are subscribed only after the customer confirms through Klaviyo’s double opt-in process, in line with carrier requirements.
Can Klaviyo segments control who earns loyalty rewards?
Yes. Loyalty earning events in Friendbuy accept Klaviyo Segment conditions with inclusion or exclusion logic and multiple segments per event. Friendbuy checks segment membership in real time, before any rewards are issued — for example, rewarding only recent subscribers.
Does Friendbuy work with Klaviyo customer hub?
Yes. Friendbuy-powered refer-and-earn offers can appear directly inside Klaviyo customer hub, the personalized logged-in experience brands offer their customers. The capability is available to any merchant running Friendbuy alongside Klaviyo customer hub.
Does Friendbuy send receipt data to Klaviyo?
Yes. For brands running receipt-based loyalty, Friendbuy sends an event to Klaviyo whenever a receipt is approved or rejected, including store, amount, and product details plus cumulative customer metrics — powering thank-you flows and store-level segments.
Do I need a developer to set up the Klaviyo integration?
No. Install is a one-time OAuth authorization from the Friendbuy dashboard — no API keys to copy and no code to deploy. A marketer connects the account, creates advocate and friend lists in Klaviyo, maps them in Friendbuy, and the integration is live.
Make referral your highest-intent Klaviyo segment
See the integration running on your stack — what syncs, what triggers, and what a closed loop between rewards and messaging does to acquisition and retention.
Prefer to read first? How brands turn referral and loyalty into lifecycle marketing with Klaviyo →
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