The full answer
A customer portal typically replaces email and phone requests with self-service: viewing orders and invoices, downloading documents, raising and tracking support tickets, updating account details and making payments. A partner portal does the same for dealers, resellers, suppliers or agents, adding things such as lead registration, price lists, stock visibility, commissions and training material.
The hard part of a portal is rarely the screens. It is the integration with the systems that already hold the data: ERP, CRM, billing, document management or a legacy database. Creuto's API development and integration work connects the portal to those systems so information is consistent and nobody re-enters data by hand.
Because portals expose company data to people outside the organisation, security is designed in from the start: single sign-on or secure authentication, role-based access so each user only sees their own accounts, encryption in transit and at rest, audit logs, and penetration testing before launch.
Portals can be delivered as responsive web apps, progressive web apps or with companion mobile apps for iOS and Android when users need notifications or offline access. Discovery maps the user types, the systems involved and the first release, and the fixed-scope proposal sets out budget, milestones and timeline.