Add an AI voice call to any Klaviyo flow.
Use Klaviyo for segmentation and email/SMS. Use Callsy for the voice touch your email-fatigued customers actually answer. They work together. Not against each other.
What Callsy + Klaviyo unlocks
- Voice call as a step in any Klaviyo flow (abandoned cart, win-back, browse abandonment)
- Klaviyo segments + profile data feed straight into Callsy scripts
- Voice-call outcomes flow back to Klaviyo as profile events
- Trigger SMS-followup flows in Klaviyo from a Callsy voice outcome
Setup
- 1
Add a webhook step in your Klaviyo flow
Inside any flow (e.g. Abandoned cart), add a Webhook action. Paste your Callsy webhook URL. Klaviyo will POST the profile + event payload to Callsy.
- 2
Map Klaviyo fields to Callsy script variables
Use Klaviyo's variable tags ({{ profile.first_name }}, {{ event.value }}) so the Callsy agent personalizes the call by name, cart contents, and segment.
- 3
Send call outcomes back to Klaviyo
Callsy posts events back to Klaviyo: 'Voice Call Connected', 'Voice Recovered Cart', 'Voice Opt-out'. Use them as triggers / suppression rules in subsequent flows.
Under the hood
- Any Klaviyo flow with a Webhook step pointing at Callsy
- Klaviyo segments (e.g. 'lapsed 60d') synced as Callsy audiences
- Klaviyo profile (name, phone, locale, custom properties)
- Triggering event payload (cart, order, browse session)
- Custom events back to Klaviyo: 'Voice Call Connected', 'Voice Recovered Cart', 'Voice Opt-out'
- Profile property updates (consent state, last_voice_contact)
What you can run on Klaviyo
Frequently asked
Will this duplicate-touch my customers?
No. Callsy honors Klaviyo's smart sending rules. You can also add a Conditional Split in your flow ('only call if email-1 wasn't opened in 30 minutes') to layer the channels.
Can I use Callsy with Klaviyo SMS?
Yes. They're complementary. Klaviyo handles the SMS, Callsy handles the voice call. Voice typically goes first (within 5 minutes); SMS picks up at hour 2 or 4 as a follow-up.
Does it support Klaviyo CDP and segments?
Yes. You can target any Klaviyo segment. Including computed segments. With a Callsy voice campaign. Segments sync on a schedule or in real time via webhook.
What about reporting. Can I see Callsy in Klaviyo analytics?
Yes. Voice outcomes appear as custom events on the Klaviyo profile, so you can build segments, flows, and reports off them. Revenue attribution also surfaces in Klaviyo's flow performance view via order tags.
Connect Klaviyo to Callsy in five minutes.
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