Building the First-Ever Post-Purchase Review Flow for an E-Commerce Brand
Overview
An e-commerce brand approached this project looking to build its very first email automation system.
Despite having an active customer base and steady product sales, the business had never implemented any structured email marketing before. There were no automated flows, no lifecycle campaigns, and no post-purchase communication system in place.
Customer reviews were being generated inconsistently and entirely by chance — relying on customers remembering to leave feedback on their own after purchasing.
The client’s goal was simple:
Build a post-purchase review flow inside Klaviyo that automatically encourages customers to leave reviews after receiving their order.
Even after recommendations to prioritize other foundational flows such as welcome sequences and abandoned cart recovery, the client specifically wanted to begin with a post-purchase review system as their first automation.
The project focused on designing and implementing a scalable post-purchase flow that could run automatically while also laying the foundation for future email marketing growth.
The Challenge
The biggest challenge was starting from zero.
The brand had:
No previous email marketing setup
No automated flows
No customer lifecycle automation
No post-purchase communication
No review infrastructure
No engagement segmentation
Because this would become the company’s very first email automation, the flow needed to feel natural and well-timed without overwhelming customers.
The objective was not only to increase reviews, but also to introduce customers to a more structured post-purchase experience that could scale long-term.
Strategic Approach
Rather than building an overly complex system immediately, the strategy focused on simplicity, timing, and customer experience.
The goal was to create a clean post-purchase flow that could:
Generate reviews consistently
Build trust after purchase
Improve customer engagement
Operate fully on autopilot
Establish the foundation for future Klaviyo flows
A major focus was timing optimization.
Instead of requesting reviews immediately after checkout, the flow was structured around:
Product fulfillment timing
Delivery windows
Product usage periods
Peak customer satisfaction moments
This ensured customers had enough time to actually experience the product before being asked for feedback.
What Was Built
A complete automated post-purchase review flow was designed and implemented inside Klaviyo.
The setup included:
Shopify-to-Klaviyo integration
Trigger configuration
Flow delays
Conditional logic
Review request emails
Follow-up sequences
Exit conditions
Frequency protection rules
The automation was intentionally kept clean and lightweight so the brand could scale its email marketing system gradually without unnecessary complexity.
post purchase flow structure
Flow Structure
The automation triggered once a customer’s order was fulfilled.
From there, the sequence included:
A delayed waiting period for shipping and product usage
A strategically timed review request email
Follow-up logic for non-openers
Exit conditions after engagement
Customers who interacted with the review request were automatically removed from additional reminders, helping prevent customer fatigue and over-emailing.
Email Design & Customer Experience
Since this was the brand’s first-ever customer automation flow, the communication style was designed to feel:
Conversational
Clean
Trustworthy
Non-invasive
The emails featured:
Mobile-friendly layouts
Clear calls-to-action
Minimal design clutter
Soft post-purchase messaging
Customer-focused copywriting
The objective was to create a positive post-purchase experience rather than making the emails feel overly promotional.
campaign progress
Early Results
The impact of the automation became visible almost immediately after launch.
Within just the first week:
Email-attributed revenue contribution increased from 18% to 54%
The brand began generating reviews consistently through automation
Customer engagement improved significantly across post-purchase communication
To support the flow launch, a small number of strategic campaigns were also deployed alongside the automation setup.
Within the first 10 days, those campaigns generated over:
21,293 DKK in revenue
This validated both:
The effectiveness of the new Klaviyo setup
The strength of post-purchase customer engagement once proper email infrastructure was introduced
revenue after 10 days
Results
The completed project transformed the brand from having no structured email marketing system into having a functioning automated post-purchase infrastructure inside Klaviyo.