How we created a complete online sales portal.

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 to sell products online is easy… in PowerPoint.

The challenge lies in building a true ecosystem: one with a checkout process 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 needing 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 story of the development of 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 "websites".

But a real online business requires much more. It requires:

• Solid checkout (simple, fast and with little friction)
• Product, plan, and package management
• recurring payment automated
• Customer's area
• Organized delivery of what was purchased. (files, access, benefits)
• Scalability (grow without breaking the operation)
  

The idea behind the Portal was precisely to bring all of that together in one place.

The solution: a portal with e-commerce + subscription + product delivery area.

What we built here wasn't just an e-commerce platform.

It was a hybrid platform:
Individual sale (product) + recurring plans + interface for content delivery and management

This allows you to scale the business model freely: you can sell on a one-off basis or by subscription, create upgrades, bundles, packages, and tiered plans.

In other words: startup structure.

1) Checkout with a simple experience and a focus on conversion.

The checkout process needed to be straightforward and quick.

Here, the priority was:

• fewer fields
• fewer steps
• Clarity regarding the value and what is being purchased.
• Trust (secure payment)
• compatibility with recurrence

2) Creating plans and packages (to scale revenue)

A strong startup doesn't depend on a single sale.

It depends on predictability.

Therefore, the Portal was developed to have:

• recurring plans
• packages by category
• upgrades and combinations
• possibility of new levels and offers without rebuilding the system.

3) Full 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 enable:

• Automatic recurring billing
• subscription with configurable frequency
• billing issuance and control
• Automatic payment attempt when applicable.
• Payment flow within the Portal with traceability.

4) Complete interface for the client to make files available (and deliver value)

Another area where many platforms fail: delivery.

Selling is one step.
Delivering is what sustains retention.

So we created an area where the customer can:

• make files available by plan.
• Organize materials by packages.
• Update content without relying on a technical team.
• create access “libraries”

5) Customer area (post-purchase experience and retention)

The customer area was designed to be the "environment" for the product.

A place where the customer:

• View the plan status
• accesses content
• receives files
• historical record
• perceives ongoing value (and continues paying)

Why does this solidify 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 the customer area.

And that brings us to the central point:

👉 Kaizen doesn't just promote products. We help create products.

Our work goes beyond just traffic.

We help companies build the structure that makes growth possible — from the business model to the recurring revenue engine.

Furthermore, this vision directly aligns with Kaizen's institutional positioning: performance, automation, and scale.

Traffic without product is just noise.

In the end, the objective here was simple and brutal:

• Create a platform that sells
• Create a platform that delivery
• Create a platform that scale

This Portal is not just a project.
It's a digital product ready for growth — with recurring revenue, complete operation, and user interface.

And it is precisely 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 take it from concept to reality 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 take it from concept to reality and create something real.

Kaizen acts as a strategic partner for companies seeking real performance, with methodology, data, and a focus on measurable growth.

Talk to our experts and understand how to apply these criteria in practice, according to the reality of your business.