Invitation-based registration
A scholarly congress is not a public event, and Sympozio does not treat it as one. There is no open sign-up form. Organisers issue single-use invitation codes, which can be distributed as a plain code, as a join link, or by email — individually for a single guest, or in bulk when a partner institution sends a delegation of two hundred. Each code is the credential that the attendee’s eventual QR badge encodes, which is what allows the platform to connect an invitation issued in March to a person arriving at a door in September.