New reportWhy Black Friday is a retention event
Hello Retail
email marketing, mail, email, automated emails, email automation, email personalization, AI email, retention emails

new agentic solution

1:1 email marketing with Product Agents

Product Agents decide what emails to send in real time, choosing the right content, products, and send time for each customer. This makes every email relevant, timely, and more likely to convert.

See it in actionTake a tour

On Shopify and Klaviyo?Try it free for 14 days

Fall Release 2026: AI for ecommerce

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Maximize revenue
from existing customers

Product Agents know how each product is bought: how often it's reordered and what goes with it. So each customer gets their email at the moment they're ready to buy, timed automatically instead of on a flow's fixed schedule. That's agentic commerce, applied to retention.

More revenueper email sentcompared to standardKlaviyo upsell flows

This makes every email more relevant and work harder than your existing upsell flow, turning post-purchase moments into a powerful revenue channel.

Customer case: Beslag Online
6.5x
revenue per email
17x
ROI in 7 days
Phone showing a personalized product recommendation email

Individual timing per product

By analyzing individual product usage cycles, the Agents predict the exact day a customer is ready to repurchase. You reach them at peak intent, not a week too early and not a day too late.

Individual timing illustration

The next ideal product in every journey

Retention goes beyond refills. Product Agents identify the next logical step in each customer journey, whether that is an accessory, a replenishment, or a relevant alternative at the right moment.

Customer journey illustration

Messages created for the moment

Product Agents generate each message in real time, adapting content and recommendations to each the individual customers and trigger.

Dynamic email content illustration

See how Product Agents work

A 3-minute walkthrough of what the agents do, how they decide what to send, and how message frequency stays under control.

Product Agents for Klaviyo

Always-on agents, and no opportunity missed

Seven specialized agents working around the clock to maximize customer engagement and revenue.

Post-purchase

Replenishment Reminder

01

Trigger reminders based on real product usage, not averages.

Recommended Addons

02

Recommend complementary products that fit exactly with past purchases.

Alternative Picks

03

Follow up with highly relevant alternatives customers care about, at the right time.

Price drop

Viewed Product

04

Send 1:1 personalized alerts for products customers viewed.

Purchased Replenishment

05

Prompt faster re-orders when replenishment products go on sale.

Alternative Product

06

Expose shoppers to relevant alternatives on-sale, they may not have considered.

Complementary Product

07

Reach past buyers when an add-on that pairs with their purchase drops in price.

See it in action"Product Agents in practice" blog postMeet the Complementary Product AgentProduct Agents launch story

Stay in control

Use existing email templates, and decide how your messages will sound with a preset tone, or create a custom voice of your own.

Choose your tone of voice settings

Know what is live

Track how many emails are scheduled and sent at a glance, so you always know what is going out, and when.

Product Agents overview dashboard

Klaviyo integration

Connect Product Agents to Klaviyo, use your existing email templates, and track performance in real time. Advanced use cases are available via webhooks.

Check out our documentation
Klaviyo Integration diagram

Trusted partners

We are also partnering with agencies and Klaviyo specialists, to ensure the integration is battle-tested, customer-driven, and built to deliver real impact from day one.

Clarify
Bluemint
Dtails
Segmento

Pricing Calculator

Credits

Credits reflect the total AI resources utilized to generate and send emails across your account each month.

Up to 10.000 Credits
€200
10.000
5.000200.000
Billing Period:

Overage rate: €50 per 1,000 emails

Not ready to commit? Shopify stores can start with 14 days or 500 emails free.Start your free trial

Frequently asked questions

Can I try Product Agents for free?
Yes, if your store is on Shopify and you send email with Klaviyo: start your free trial. It runs for 14 days or 500 emails, whichever comes first, and needs no card. Already a Hello Retail customer on Klaviyo? You can start the trial on any platform: log in to your Hello Retail account and open the Product Agents tab. Otherwise, book a demo below.
What are Product Agents?
Product Agents are AI agents that autonomously decide what emails to send, when to send them, and which products to feature, based on real-time product data, customer behavior, and purchase history.
How do Product Agents differ from traditional email automation?
Traditional email automation uses fixed rules and segments: you define the trigger, the timing, and the content. Product Agents work the other way around: they continuously evaluate your entire customer base against your full product catalog and decide when a message is worth sending.
Do Product Agents replace Klaviyo?
No. Product Agents integrate directly with Klaviyo, trigger within a simple flow, and use your email templates. They complement your setup, not replace it.
How does an agent decide when to send an email?
Each trigger goes through a structured evaluation: is the message still relevant, is the timing right, has the customer received something recently? Messages may be delayed or skipped entirely if they're no longer relevant. The goal is more relevant emails.
How often will my customers receive emails from Product Agents?
There's a hard limit of one Product Agent email per recipient per day. You can also set custom frequency caps per channel, for example, no more than three per month. If multiple agents qualify at the same time, only the most relevant message is sent.
How does the Klaviyo integration work?
Product Agents connect to Klaviyo via API. When an agent sends a message, it triggers a Klaviyo flow and passes the agent-generated content (subject line, headline, body, and product picks) as event properties that populate your template.
How do I know if Product Agents are working?
The dashboard shows scheduled, sent, and skipped messages. The Preview tab lets you inspect the content of any sent email. Open rates, clicks, and revenue are tracked in Klaviyo.
How long does setup take?
Most stores are up and running within a few hours: connect your Klaviyo account, configure a flow and template, and enable the agents you want. No complex flow-building required.
How are credits used?
One credit is used each time a message is handed off to your email channel. Skipped and test messages don't use credits. You can monitor usage in the billing dashboard.
Do I need to worry about sending pausing if I run out of credits?
Not if you enable Auto-Overage. When your balance runs out, credits are purchased automatically so your agents keep running without interruption. You can set a cap to stay in control of spend.

Book a demo

See how Product Agents can work for your store.

  • See how it works with your products and data
  • Walk through real scenarios for your store
  • Learn what can be automated for you

On Shopify? Skip the demo andstart a free trial.

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