How We Created a Complete Portal with Online Sales, Checkout, and Recurring Payments (Asaas) and Why This Proves That Kaizen Creates Startups
Creating a portal for selling products online is easy… in PowerPoint.
The hard part is building a real ecosystem: with a checkout that converts, flexible plans and packages, automated recurring payments, a customer area, file delivery, and an interface so simple that anyone can operate it — without relying on a technical team on a daily basis.
And that’s exactly what we did here.
In this article, I want to share the behind-the-scenes of developing this Portal — a complete digital product — and how it reinforces a positioning that Kaizen has been consolidating: more than a marketing agency, we are a Startup Creator.
The Challenge: Selling Products Online with a Real Business Structure (and Not Just “a Pretty Website”)
Most digital projects fail for a simple reason: they are born as a “website.”
However, a real online business requires much more. It demands:
- Solid checkout (simple, fast, and with minimal friction)
- Management of products, plans, and packages
- Automated recurring payments
- Customer area
- Organized delivery of what was purchased (files, access, benefits)
- Scalability (growing without breaking the operation)
The idea of the Portal was precisely to bring all of this together in one place.
The Solution: A Portal with E-commerce + Subscription + Product Delivery Area
What we built here was not just an e-commerce site.
It was a hybrid platform:
One-time sales (product) + recurring plans + interface for delivery and content management
This allows for scaling the business model freely: you can sell in a “one shot” or sell by subscription, create upgrades, combos, packages, and tiered plans.
In other words: a startup structure.
1) Checkout with a Simple Experience and Focus on Conversion
The checkout needed to be straightforward and fast.
Here, the priority was:
- fewer fields
- fewer steps
- clarity on the price and what is being purchased
- trust (secure payment)
- compatibility with recurring payments
2) Creation of Plans and Packages (to Scale Revenue)
A strong startup does not rely on one-time sales.
It depends on predictability.
That’s why the Portal was developed to have:
- recurring plans
- category packages
- upgrades and combinations
- the possibility of new levels and offers without redoing the system
3) Complete Integration with Recurring Payments via Asaas
Here came one of the pillars that transformed this project into a “real product.”
We integrated the Portal with Asaas to allow:
- automatic recurring billing
- subscription with configurable frequency
- issuance and control of billing
- automatic billing attempts when applicable
- payment flow within the Portal with traceability
4) Complete Interface for the Customer to Provide Files (and Deliver Value)
Another point where many platforms fail: delivery.
Selling is one step.
Delivering is what sustains retention.
So we created an area where the customer can:
- provide files by plan
- organize materials by packages
- update content without relying on a technical team
- create “libraries” of access
5) Customer Area (Post-Purchase Experience and Retention)
The customer area was built to be the “environment” of the product.
A place where the customer:
- sees the status of the plan
- accesses content
- receives files
- tracks history
- perceives continuous value (and keeps paying)
Why This Consolidates Kaizen as a Startup Creator
If you look closely, this Portal has all the fundamental elements of a startup:
- Operational digital product
- Scalable platform
- Automated recurring revenue
- Integrated checkout and monetization
- Offer management (plans/packages)
- Continuous delivery of value via customer area
And this brings us to the central point:
👉 Kaizen does not just promote products. We help create products.
Our work goes beyond traffic.
We help companies build the structure that makes growth possible — from the business model to the recurring engine.
In fact, this vision directly aligns with what Kaizen already positions institutionally: performance, automation, and scale.
Traffic without a product is just noise
In the end, the goal here was simple and brutal:
- Create a platform that sells
- Create a platform that delivers
- Create a platform that scales
This Portal is not just a project.
It is a digital product ready for growth — with recurring payments, operation, and a complete interface.
And it is exactly this type of delivery that reinforces the positioning:
Kaizen is a Startup Creator.
Do you want Kaizen to build your digital product?
If you have an idea and want to turn it into a platform (with checkout, subscription, and automated delivery), Kaizen can help you bring it to life and create something real.
Do you want Kaizen to build your digital product?
If you have an idea and want to turn it into a platform (with checkout, subscription, and automated delivery), Kaizen can help you bring it to life and create something real.
Kaizen acts as a strategic partner for companies seeking real performance, with method, data, and a focus on measurable growth.
Talk to our specialists and understand how to apply these criteria in practice, according to your business reality.