Vipps Authentication

Vipps is the most widely installed app in Norway and provides a low-friction authentication path for users who may not have active BankID on mobile, maximizing demographic coverage across peer mentors with varying digital literacy levels. The personnummer return value delivers the same member enrichment benefit as BankID, addressing the gap where many member records lack this identifier. The monthly provider cost (350-750 NOK shared across organizations) is justified by reduced onboarding friction and the strategic advantage of meeting users on a platform they already trust for everyday financial transactions.

Integration uses Vipps Login's OpenID Connect provider with standard PKCE flow, following the same architectural pattern as BankID to keep the Authentication Module provider-agnostic. Per-tenant Vipps client credentials are stored in organization configuration. The cost-sharing model for the monthly fee must be agreed contractually before release, as noted explicitly in the source documentation. Flutter handles the deep-link callback; the admin portal uses standard HTTP redirect. The implementation reuses the same token issuance pipeline as BankID to avoid duplicating session management logic and to support future providers without further architectural changes.