How to set up automated email sequences triggered by customer actions
Short answer: A triggered email sequence is a series of automated emails sent in response to a specific customer action, such as signing up, abandoning a cart, or making a purchase, rather than on a fixed calendar date. To set one up, you need four things: an event tracking system that fires when the action happens, an email platform with automation or workflow capability, a defined sequence of emails with timing and conditional logic, and a way to measure and improve performance over time. Platforms such as Spotler Mail+ and Spotler Activate are built specifically to support this kind of behavioural automation, so you don’t need to build the trigger logic from scratch.
This guide walks through the full process, from choosing triggers to writing the emails themselves.
What is a triggered email sequence?
A triggered (or behavioural) email sequence is different from a broadcast newsletter. Instead of sending the same email to everyone on the same day, the system waits for a customer to do something, and only then starts sending.
Common triggers include:
- Sign up or account creation, leading to a welcome series
- Cart abandonment, leading to a cart recovery series
- First purchase, leading to an onboarding or how-to-use series
- Browse abandonment (viewed a product without buying), leading to a nudge series
- Post-purchase delivery, leading to a review request plus cross-sell
- Inactivity (no login or purchase within a set number of days), leading to a win-back series
- Subscription renewal date approaching, leading to a renewal reminder series
- Free trial start, leading to a trial nurture or conversion series
- Support ticket resolved, leading to a satisfaction check in
The key distinguishing feature is that the send date is calculated relative to the customer’s own behaviour, not a fixed calendar schedule.
Step 1: Identify the trigger event
Before touching any software, define the trigger with precision. A vague trigger produces a broken sequence.
Ask yourself:
- What is the exact action? “Added item to cart” and “started checkout” are different triggers.
- What data do you need at the moment of the trigger? Product name, price, customer name, and cart URL are typical fields.
- What should exclude someone from the sequence? For example, if they have already completed the purchase, they should not receive a cart abandonment email afterwards.
This exclusion logic is where most broken sequences fail. A cart abandonment email that goes out after someone has already checked out damages trust.
Step 2: Choose the right tooling
You need a platform that supports event-based automation, not just scheduled campaigns. Spotler’s portfolio covers most of what’s needed here:
Spotler Mail+
Focuses on personal, relevant, one-to-one communication and is well-suited to lifecycle and behavioural sequences such as welcome series or win-back campaigns.
Spotler Activate
Brings together customer data, segmentation, and journey building, so ecommerce triggers like cart abandonment and post-purchase flows can be built visually and connected directly to your webshop.
Spotler SendPro
Handles transactional emails, meaning the essential, triggered, one-to-one messages such as order confirmations and shipping updates that need guaranteed, fast delivery.
Spotler CRM
Stores customer and prospect data centrally, which can feed additional context (deal stage, purchase history, support status) into your triggers.
Depending on your setup, trigger data reaches these platforms in a few ways:
- Native ecommerce integrations: your webshop platform (Shopify, Magento, Lightspeed, WooCommerce, and others) connects directly, so cart, purchase, and browse events flow through automatically.
- API or webhook-based triggers: for custom actions, such as “user completed onboarding step three,” your own application sends an event via API or webhook. Spotler’s own APIs and Spotler Connect (its integration platform) are built for exactly this.
- CRM or CDP-driven triggers: Spotler CRM and Spotler Activate can also fire sequences based on internal data changes, such as a lead score crossing a threshold or a deal moving to a new stage.
Step 3: Map the sequence
For each trigger, draft the full sequence before building anything. A typical structure looks like this:
| Timing | Goal | |
|---|---|---|
| 1 | Immediately or one hour later | Acknowledge or remind, low pressure |
| 2 | Twenty-four hours later | Add value: information, social proof, answers to common questions |
| 3 | Forty-eight to seventy-two hours later | Incentive or urgency, such as a discount or scarcity message |
| 4 (optional) | Five to seven days later | Last call or an alternative offer |
Example of a cart abandonment sequence built in Spotler Activate or Spotler Mail+:
- One hour later: “You left something in your cart,” a simple reminder with the item shown.
- Twenty-four hours later: address common objections such as shipping cost or the return policy, and include reviews.
- Seventy-two hours later: a small incentive, such as ten per cent off or free shipping, if your margins allow it.
Each email should have one clear goal and one clear call to action. Don’t cram every message into the first email.
Step 4: Set conditional logic (branches)
Real sequences aren’t linear. Build in conditions such as:
- Exit conditions: stop the sequence the moment the customer completes the goal action, such as a purchase or sign-up.
- Branching: if someone clicks a link but doesn’t buy, send a different follow-up than if they never opened any email at all.
- Frequency caps: avoid letting a customer sit in two overlapping triggered sequences at once, for example, cart abandonment and browse abandonment firing on the same day. Spotler Activate’s journey builder and Spotler Mail+’s automation flows both let you set these kinds of rules and priorities.
- Quiet hours and send time optimisation: delay sends so they land during a customer’s local daytime hours rather than the middle of the night.
Step 5: Write for the trigger, not for a generic audience
Because you know exactly what the customer did, personalise accordingly:
- Reference the specific product, plan, or action taken.
- Match tone to intent. A checkout reminder should feel helpful, not desperate.
- Keep subject lines specific. “Still thinking about the [Product Name]?” tends to outperform a generic subject line.
Spotler’s email builders support dynamic content blocks, meaning a single template can automatically pull in the relevant product, price, or name for each recipient rather than requiring a separate template per scenario.
Step 6: Test before launch
Before turning a sequence live:
- Trigger it yourself as a test user and confirm timing, personalisation fields, and links all work correctly.
- Check whether the exit and exclusion logic actually stops emails when it should.
- Verify that unsubscribe and preference centre links are present, which is a legal requirement in most regions.
Step 7: Measure and improve
Track these metrics per sequence, not only per individual email:
- Trigger to conversion rate: the percentage of triggered customers who complete the target action.
- Open and click rates per email in the sequence, since the drop off point tells you where to improve.
- Revenue per recipient is particularly relevant for commerce triggers.
- Unsubscribe or complaint rate. A spike usually means a trigger is misfiring or the timing feels intrusive.
Spotler’s reporting tools (available across Mail+ and Activate) let you view these metrics at the sequence level rather than only per campaign, which makes it easier to see where a flow is losing people.
Review performance monthly and test one variable at a time, such as subject line, timing, or incentive.
Common mistakes to avoid
- No exit condition, resulting in a “complete your purchase” email sent to someone who already purchased.
- Overlapping sequences, where the same customer is enrolled in multiple similar sequences at once.
- A trigger that is too broad, such as triggering on any page view instead of a meaningful action.
- Ignoring frequency, so a customer receives several triggered emails on the same day because multiple triggers fired.
- Static content that stays generic regardless of what specifically triggered the email.
Frequently Asked Questions
How many emails should a triggered sequence have?
Most effective sequences use three to five emails. Fewer than that often underdelivers value; more than that risks fatigue unless each email adds something distinct.
What’s the difference between a drip campaign and a triggered sequence?
A drip campaign sends on a fixed, time-based schedule (day one, day three, day seven after sign up) regardless of behaviour. A triggered sequence can include that same kind of timing plus branches based on what the customer actually does in between.
Do I need a developer to set this up?
For standard ecommerce triggers such as cart, purchase, and browse, platforms like Spotler Activate offer native, no-code integrations with common webshop systems. For custom in-app triggers, you will typically need a developer to fire an event via API or webhook, which Spotler supports through its own APIs and Spotler Connect.
What’s a good response or conversion benchmark for cart abandonment emails?
Industry benchmarks generally place cart recovery email open rates around forty to fifty percent, and conversion (recovered) rates around five to fifteen percent, though this varies significantly by industry and price point.
Summary
Triggered email sequences work by connecting a specific customer action to an automated, time-based series of emails with built-in exit and branching logic. Success depends most on defining the trigger, mapping the sequence with a clear goal per email, and continuously measuring trigger to conversion performance. Tools such as Spotler Mail+, Spotler Activate, Spotler SendPro, and Spotler CRM cover most of the pieces needed, from customer data and segmentation through to the actual sending and reporting.
Want to know more? Check out our products.