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Greta.Agency
SaaS MVP/Ecommerce

Build a SaaS MVP
for Ecommerce.

Built for ecommerce businesses and direct-to-consumer brands.

We build SaaS products with the right architecture for auth, billing, and scale.

Production-ready architectureStripe billing includedScales with your growth4–10 weeks
The problem

Why Ecommerce companies struggle with this.

1

Outgrowing Shopify's capabilities without wanting to over-invest in platform extensions

2

Custom checkout, pricing, or discount logic that standard platforms can't support

3

No clear operational view of inventory, orders, and fulfillment across channels

4

B2B ordering, wholesale, or subscription models that don't fit retail-first platforms

The solution

How we build it
for Ecommerce.

Shopify and WooCommerce cover the basics, but custom ecommerce products let you build workflows that generic platforms can't — custom pricing logic, unique fulfillment flows, B2B ordering, or multi-channel inventory management.

Ecommerce products go beyond the storefront: inventory management, order operations, customer retention, and data visibility are what separate growing brands from ones stuck in tool limitations.

Real SaaS architecture built for multi-tenancy from day one

Billing and subscriptions wired in before launch

You own the product — no platform lock-in

Industry context built in — not bolted on

Deliverables

What you get.

01

Multi-tenant SaaS application architecture

02

User authentication with roles and permissions

03

Subscription billing with Stripe

04

Admin dashboard for platform management

05

API layer for integrations and extensibility

Use cases

What Ecommerce companies
build with us.

Custom ecommerce platforms

Build a fully custom storefront, checkout, and order management system for complex use cases.

Ecommerce operations dashboards

Create internal tools for inventory management, fulfillment tracking, and order operations.

B2B ordering systems

Build wholesale portals with custom pricing, tiered accounts, and bulk ordering workflows.

Process

How we work.

01

Define the product

Scope the core use case, user types, and essential workflows for launch.

02

Architecture first

Design the multi-tenant structure, data model, and key integrations before building.

03

Build core flows

Ship auth, billing, dashboard, and the primary product features.

04

Launch and grow

Deploy to production, onboard early users, and iterate on real usage data.

Ready to build a SaaS MVP for Ecommerce?

Typical timeline: 4–10 weeks

About this service

What is SaaS MVP for Ecommerce?

SaaS MVP for Ecommerce means building a SaaS MVP specifically designed around the workflows, compliance expectations, and user needs of ecommerce businesses and direct-to-consumer brands. Unlike generic software or off-the-shelf tools, a custom-built solution gives your team full control over features, data, and the product roadmap — without paying for capabilities you don't need or working around limitations that slow you down.

Ecommerce products go beyond the storefront: inventory management, order operations, customer retention, and data visibility are what separate growing brands from ones stuck in tool limitations.

Why Ecommerce companies need custom saas mvp

Shopify and WooCommerce cover the basics, but custom ecommerce products let you build workflows that generic platforms can't — custom pricing logic, unique fulfillment flows, B2B ordering, or multi-channel inventory management.

Most ecommerce teams start with generic tools because they're fast to deploy. But as the business grows, those tools create friction — missing the specific logic, integrations, and workflows that ecommerce operations actually need. A custom-built product eliminates that friction permanently.

How long does it take to build?

Ecommerce MVPs can launch in 4–6 weeks. Full custom platforms with ERP or warehouse integration take 10–18 weeks. The timeline depends on scope, the number of user types, and the depth of integrations with existing ecommerce systems. A well-scoped project with clear requirements moves significantly faster than one that evolves through the build. We scope tightly before starting so timelines stay predictable.

What does it cost?

Custom ecommerce builds typically range from $8k–$40k depending on catalog complexity, integrations (3PL, ERP, payment gateways), and operational tooling needs. The biggest cost drivers are integration complexity, the number of distinct user roles, and whether the product needs to handle regulated data or compliance workflows. We provide a clear scope and fixed-price quote before any work begins.

Custom build vs. off-the-shelf tools

Off-the-shelf tools work well for standard use cases. But ecommerce companies often have requirements that generic SaaS tools weren't built for: outgrowing shopify's capabilities without wanting to over-invest in platform extensions, custom checkout, pricing, or discount logic that standard platforms can't support, or workflows that don't fit the assumptions baked into general-purpose platforms.

A custom-built product gives you:

  • Full ownership — no per-seat fees or platform lock-in
  • Workflows built exactly for how ecommerce teams operate
  • Integrations with the tools and data sources you already use
  • A foundation you can extend as your product and team grow

The right time to build custom is when generic tools are creating real friction, costing more in workarounds than a custom build would cost, or blocking product-critical workflows that your ecommerce business depends on.

Start your project

Ready to build
for Ecommerce?

We build SaaS products with the right architecture for auth, billing, and scale. Scoped for ecommerce businesses and direct-to-consumer brands.