Product events to email
Turn what users do in your app into the email they get next.
GetFluxly turns product events into lifecycle email: send events by SDK or HTTP API, GetFluxly builds a unified profile from them, a segment or automation triggers on the behavior you define, and the email goes out through your own ESP.
The core idea
Two things joined into one workflow.
Product analytics captures what happened. Lifecycle email decides what happens next. GetFluxly is the layer that connects them.
Product events
Every signup, login, feature used, limit hit, or plan change is a product event, the same signal a product analytics tool would capture. On its own, an event is just a row in a table.
Lifecycle email
A lifecycle email is a message tied to where someone is in the product, not a date on the calendar. It only means something once it's wired to an actual event.
How it works
From an action in your app to an email in an inbox.
Four steps, no separate analytics and email stack to keep in sync.
Send events by SDK or API
Install the JavaScript SDK for autocapture plus custom events, or send events straight from your backend with the HTTP Events API. An event like trial_started or usage_limit_reached lands in GetFluxly within seconds either way.
Events build a unified profile
Each event attaches to one customer profile, merging what someone did with who they are: plan, signup date, company size. There's no separate identity table to keep in sync.
Segments and automations trigger off behavior
Build a segment like “hit the usage limit twice this week” or “trial expiring, no card on file,” then point a behavior-triggered automation at it. It fires the moment a profile qualifies, not on a fixed day.
Email sends through your own ESP
GetFluxly doesn't send the email itself. Connect Resend, AWS SES, Mailgun, Brevo, SendGrid, Postmark, or any SMTP provider, and the triggered email goes out through infrastructure you already trust.
Choosing events
Not every event deserves an automation.
Autocapture plus custom events means GetFluxly can log nearly everything happening in your app, but an automation built on noise gets ignored fast. The events worth acting on are usually a short list: activation milestones, usage limits, plan changes, and moments of silence.
Start with which events to track and product event tracking for email to decide what to instrument first. For the specific case of a usage cap, see send an email when a user hits a usage limit .
One tool, not two
One profile beats a webhook between two tools.
Stitching a product analytics tool to a separate email tool
usually means a webhook, a sync job, or a CSV export sitting
between the event and the send. Every extra hop is a place
identity gets lost, a field goes stale, or a trigger fires a
day late. GetFluxly keeps the event, the profile, and the
automation in one place, so usage_limit_reached can trigger an email the same
second it happens instead of on the next sync. The full
comparison is in
event-triggered vs time-based emails
.
That said, one tool isn't always the right call. A team already running a CDP that feeds a data warehouse and a dozen downstream tools has good reasons to keep analytics and email as separate, specialized systems, that setup is built for a different scale of problem. GetFluxly is built for solo founders and small SaaS teams who want product events, profiles, and lifecycle email in one place instead of a pipeline to maintain. See what's included on the features overview, and what connects on the integrations page.
See it in your product
Three moments worth an email, automatically.
Common triggers teams wire up in the first week, built from events you're likely already emitting.
Usage limit hit
The moment a profile crosses a usage_limit_reached event, an automation can send the upgrade path before the account files a support ticket instead.
Activation milestone reached
First project created, first integration connected, first teammate invited: whatever counts as “got it” for your product, an email can reinforce it the moment it happens.
Trial expiring, no card added
A segment for “trial ends in 3 days AND no card on file” is one rule. The automation on it is the nudge that turns a quiet trial into a conversation.
Try it on your own usage limit.
Connect a source, send one event that matters, and watch a profile update in GetFluxly within seconds.
FAQ
Questions, answered.
Do I need a developer to send my first event?
Not for the common cases. The JavaScript SDK autocaptures clicks, page views, and signups out of the box, and custom events are a single function call. If events come from your backend instead, the HTTP Events API is a plain POST request, no SDK required.
What's the difference between a product event and an email trigger?
An event is the raw fact: someone hit a usage limit, someone completed onboarding. A trigger is the rule you build on top of it, usually a segment or an automation condition, that decides which events actually cause an email to send. The event alone never sends anything.
Does GetFluxly send the emails itself?
No. GetFluxly builds the profile, the segment, and the automation, then hands the send to an email service provider you connect yourself: Resend, AWS SES, Mailgun, Brevo, SendGrid, Postmark, or any SMTP provider.
How is this different from connecting an analytics tool to an email tool with a webhook?
It removes the webhook. The event, the customer profile, and the automation live in one system, so there's no export, no sync job, and no second copy of the customer record that has to keep matching the first one.
Is this the right setup for an enterprise data team?
Not always. A team already running a CDP that feeds a warehouse and a dozen downstream tools has good reasons to keep analytics and email separate. GetFluxly is built for solo founders and small SaaS teams who want that whole workflow in one tool instead of a pipeline to maintain.
Do I need a credit card to try it?
No. The trial runs 14 days with no card required. After that it's a single $29 a month plan with 2,500 profiles included, priced by profiles tracked beyond that.