Your best flows aren’t broken. They’re starving for identity.
Klaviyo flows only fire when Klaviyo knows who someone is. Upstack re-identifies lost visitors and feeds them back into your automation — recovering $24K–$92K/month in flow revenue without rebuilding a single flow.
Perfect White Tee recovered $92K/month in incremental abandonment flow revenue.
Trusted by DTC brands recovering $24K\u2013$92K/month in Klaviyo flow revenue
4.9/5 on Shopify App Store
1,000+
Brands
actively running Upstack
40%+
Matched events
average signal uplift
<20 min
Setup
most brands go live
Your flows can’t email customers Klaviyo doesn’t recognize.
You’ve built excellent abandonment and lifecycle flows, but they’re reaching a fraction of the people who should trigger them. Cookies expire in 7–20 days, sessions break across devices, and profiles go cold. You know there’s revenue on the table — you just can’t reach it.
40–50% of your returning visitors are invisible to Klaviyo. That’s 40–50% of your abandonment flow audience that simply doesn’t exist.
The Klaviyo identity gap in action
| What Happens | Klaviyo Sees | Result |
|---|---|---|
| Customer clicks Meta ad on mobile | New visitor (starts session) | Cookie set, profile created |
| Cookie expires after 7–20 days | Profile goes cold | Customer becomes invisible |
| Customer returns on desktop | “Who is this? Never seen them.” | Abandoned cart flow: NEVER FIRES |
| Customer leaves without buying | Anonymous session | Revenue lost. Flow stayed silent. |
“For months, we were running campaigns without really knowing what was working. Upstack gave us visibility we’d never had — and recovered revenue we didn’t even know we were missing.”
— Team at Champo
Re-identify. Reconnect. Recover revenue.
Upstack re-identifies lost visitors and feeds them back into your existing Klaviyo profiles. Your flows don’t change — they just reach more people.
Re-identify
Upstack’s identity graph recognizes returning shoppers even after cookies expire or devices change — up to a year later. Champo went from 28K to 64K identified profiles in 30 days.
Reconnect
Re-identified visitors are matched to existing Klaviyo profiles so your current flows trigger automatically. No new flows needed. No new contacts. Your Klaviyo bill stays the same.
Measure
Track flow revenue directly attributable to Upstack’s re-identified profiles — separated from your baseline so you see true lift. Not blended, not estimated — measured.
Proven non-cannibalizing: the head-to-head test
Perfect White Tee ran a controlled test. The competitor’s flows went to zero after proper setup — proving they were cannibalizing existing flows, not generating new revenue. Upstack’s abandonment flows showed a 50% increase in volume with genuinely incremental revenue. Result: $92K/month that didn’t exist before.
Recover $24K–$92K/month in flow revenue.
| Metric | Without Upstack | With Upstack |
|---|---|---|
| Identified returning visitors | 50–60% | Near 100% |
| Abandonment flow reach | 50–60% of eligible | Near 100% |
| Monthly flow revenue lift | — | $24K–$92K |
| Flow volume increase | — | 1.8x |
| Klaviyo bill change | — | $0 |
Perfect White Tee
+$92K/mo incremental
On top of existing $115K/mo Klaviyo performance. 85% increase in email-driven revenue. Head-to-head tested — competitor’s flows went to zero.
Champo
+$24K/mo recovered
54% increase in total flow revenue. 128% more customers identified (28K to 64K profiles/mo). Emails that would have never sent without identity.
Montreal Weights
$55K recovered in 90 days
Abandoned cart revenue from invisible visitors turned into paying customers. High-consideration fitness equipment with persistent identity.
“The proof is in the email flows — one with Upstack data, one without. Big difference.”
Adam Humphreys
Founder, Labucq
Labucq captured 65% more abandoned carts by tracking visitors across devices. The identity layer doesn’t change your flows — it just makes sure they reach everyone they should.
First-party identity, not purchased lists.
Third-party enrichment adds strangers to your Klaviyo account. Upstack reconnects your own customers. One inflates your bill and kills deliverability. The other recovers revenue with zero risk.
| Dimension | Upstack Flow | Third-Party Enrichment |
|---|---|---|
| Data source | Your own first-party contacts | Purchased email lists from data brokers |
| New contacts added | Zero — reconnects existing profiles | Yes — inflates your list with unknowns |
| Klaviyo bill impact | $0 increase (same contact count) | Increases with list size |
| Spam risk | None — your own opted-in contacts | High — unknown contacts haven’t opted in |
| Revenue type | Proven incremental (head-to-head tested) | Questionable — often cannibalizes existing flows |
| Flow changes required | None — works with existing flows | May require new flows or segments |
Your flows are ready. They just need to know who’s visiting.
First-party only — zero deliverability risk
Upstack reconnects your own customers, not purchased strangers. No spam complaints, no domain reputation damage, no CAN-SPAM exposure. Your deliverability stays pristine.
Proven non-cannibalizing (head-to-head tested)
Perfect White Tee ran a controlled test. The competitor’s flows went to zero — they were cannibalizing, not adding value. Upstack flows showed 50% volume increase with genuinely new revenue.
Zero flow rebuilds, zero Klaviyo bill increase
Your existing automation infrastructure works harder. No new contacts added to your list. No new flows to build. No new templates to design. Your Klaviyo bill doesn’t change.
Same identity layer also fixes your Meta ads
PWT recovered $92K/month in Klaviyo revenue AND cut CAC 33% on Meta — from the same Upstack integration. One identity graph, two revenue streams.
Upstack Flow is powered by the Upstack stack.
Upstack ID re-identifies visitors. Upstack Flow reconnects them to Klaviyo. Signal sends enriched events to your ad platforms. One integration, every channel.
Frequently asked questions about Klaviyo revenue recovery
Stop leaving revenue on the table.
Your flows are ready. Your automations are built. The only thing missing is the identity layer that tells Klaviyo who’s actually on your site. Start a free trial — most brands see results in the first two weeks.
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