Custom customer portal development: your own digital service environment
Building a customer portal gives your clients and partners 24/7 access to documents, project status, invoices and communication, all in one place that you fully control. Appfront designs and builds customer portals, partner portals and B2B portals that fit seamlessly with your business processes and existing systems.
What we build: portals that strengthen your business processes
A good customer portal is far more than a login page with documents. It is a strategic tool that deepens your relationships with customers, partners and suppliers. We build portals that simplify complex workflows, eliminate manual work and present your organisation in a more professional light. You can also explore our wider web application development and enterprise software services.
From first sketch to production portal
Every portal project starts by mapping out your processes and user roles. Who needs to see what? Which actions should customers or partners be able to carry out themselves? Based on this, we design the information architecture, build the functionality in sprints and connect the portal to your existing systems, from CRM and ERP to invoicing software and document management.
Three portal types, the same quality
Whether it's self-service for your end customers, collaboration with partners or an extensive B2B environment, we build the portal that fits your situation. Every variant is custom, built on an architecture that grows with your organisation.
Customer portal
A central environment where your customers manage their own details, consult documents, view invoices and follow the progress of projects or orders. Fewer phone calls for your service team, more autonomy for your customers. Think of a personalised dashboard with real-time status updates, a messaging module for direct communication and a knowledge base with frequently asked questions.
- Personal dashboard with project status
- Document upload and management
- Invoice overview and payment history
- Ticketing and communication module
- Notifications on status changes
Partner Portal
When you work with dealers, distributors, franchisees or suppliers, you need an environment that structures information exchange and keeps it secure. A partner portal gives your network access to product catalogues, price lists, marketing materials, order information and shared reports, all with roles and permissions that you configure yourself.
- Shared product catalogues and price lists
- Order and stock management
- Marketing material and co-branding tools
- Performance reports per partner
- Lead registration and deal tracking
B2B portal
A full-scale B2B portal combines customer and partner functionality with sophisticated business logic. Think of complex role and permission structures (organisation, department, user), approval workflows, SLA monitoring, API integrations with multiple back-end systems, and a multi-tenant architecture for serving several organisations from a single platform.
- Hierarchical roles and permissions
- Approval workflows and escalations
- Multi-tenant with white-label options
- SLA dashboards and contract management
- Automated reporting and export
Core functionality of a modern portal
A customer portal is only as strong as the features it offers. We don't build empty screens but working solutions that demonstrably save time. Below are the four pillars that come up in almost every portal project. Also read about our custom software approach.
Real-time dashboards and reporting
Give your customers and partners a clear overview with dashboards that show real-time data. Project progress, outstanding invoices, SLA compliance or sales performance: every user sees only the information relevant to them. The data comes directly from your source systems via secure API integrations, so figures are always up to date. Reports can be exported as PDF or CSV and sent automatically at set times.
Document exchange and archiving
Stop sending attachments by email. Your clients can upload and share documents through the portal, in a structured environment with version control, categorisation and search. Think contracts, technical specifications, certificates and quotes. Documents are stored encrypted and are only accessible to authorised users. Ideal for sectors with compliance requirements such as healthcare, finance and construction.
Ticketing, messages and notifications
Centralise all communication with your clients in the portal. A built-in ticketing system with status tracking replaces the endless email back-and-forth that service teams struggle with every day. Users submit requests, follow their progress and receive automatic notifications on updates, by email, in-app or via push. Internal staff work from a queue with SLA timers, so nothing gets left behind.
Automated workflows and approvals
Many business processes follow fixed steps: a request needs manager sign-off, a quote must be approved, a change has to pass compliance. We build these workflows into the portal so that approvals, escalations and notifications run automatically. The result: faster turnaround times, a complete audit trail and fewer human errors. This is where an enterprise platform makes the difference.
Technology stack and integrations
A portal doesn't stand alone. It has to work seamlessly with the systems you already use. We choose technologies based on your requirements, not on hype. Also see our API integration expertise for complex system integrations.
Frontend and backend
For the frontend we work with React, Next.js or Vue.js, frameworks that deliver fast, responsive interfaces that work well on any device. We build the backend with Node.js, Python or .NET, depending on your existing environment and scaling needs. Databases range from PostgreSQL for relational data to MongoDB for document-oriented storage. Everything is containerised with Docker and hosted on cloud infrastructure that grows with your usage.
- React / Next.js / Vue.js frontend
- Node.js / Python / .NET backend
- PostgreSQL, MongoDB, Redis
- Docker and Kubernetes for scalability
- CI/CD pipelines for secure deployments
Integrations with your systems
The portal retrieves data from and writes data back to your existing systems. We have experience connecting to Salesforce, HubSpot, Exact Online, SAP, Microsoft Dynamics and dozens of other platforms. Via REST APIs, webhooks or custom middleware, we ensure data synchronises in real time, without manual re-entry or CSV imports. Do you have legacy systems without an API? Then we'll build an integration layer that acts as a bridge.
- CRM: Salesforce, HubSpot, Dynamics 365
- ERP: Exact Online, SAP, AFAS, Unit4
- Invoicing: Mollie, Moneybird, Twinfield
- Communication: SendGrid, Twilio, Microsoft 365
- Legacy systems via custom middleware
Test your idea first: a working prototype in 1 day
With OneDayBuild, we turn your idea into something tangible in one day for €1,150, so you can see whether further development is worth the investment. Decide to go ahead with the full build? Then we credit the full cost.
Explore OneDayBuild →Why choose Appfront for your client portal?
Almost any agency can build a portal. The difference lies in how deeply we understand the business logic behind it, and how robust the result is after going live.
Our philosophy
Your portal is not a standalone project. It is an extension of your organisation, built by a team that understands how technology improves business processes.
Technical depth
Our team combines expertise in software development, systems integration and cloud architecture. We don't build templates for you to fill in yourself; we deliver complete portal solutions, including back-end logic, API integrations and an admin panel. The code is yours: no vendor lock-in and no licence fees on the software itself.
- Experience with complex role and permission models
- Multi-tenant architecture for SaaS-style portals
- Performance engineering for high visitor numbers
Iterative approach
We work in two-week sprints. After each sprint you have working software that you can test with real users. This way we adjust based on feedback rather than assumptions. The first usable version of your portal can often be ready within a few weeks. Take a look at our completed projects or read more about us.
- Working software after every sprint
- Direct feedback from end users
- Transparent communication and planning
Security and compliance
A portal where customers, partners or suppliers log in to access sensitive business information has to be watertight. Security is not a feature we add afterwards -- it is built into every part of the architecture, from day one.
- Single Sign-On (SSO) via SAML 2.0 or OpenID Connect
- Two-factor authentication (2FA) as a standard option
- Role-based access control (RBAC) on every resource
- Encrypted data storage and communication (TLS 1.3)
- Full GDPR compliance, including data processing within the EU
- Audit logging of all user actions
- Penetration testing and security reviews before go-live
- IP whitelisting and session management
Read more about our information security policy and responsible disclosure policy.
Frequently asked questions about building a customer portal
Ready to bring your customer portal to life?
From an initial idea to a fully working portal with dashboards, integrations and secure access -- we'll build it for you. Explore our services, read more about our approach, or get in touch directly for a no-obligation conversation about what's possible.