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POST
Send either userId for a member or email for an external guest, never both. An address that belongs to an active account is invited as that member, so one person is never listed twice. Guests cannot sign in and never co-organize. In a planned meeting the new participant receives the invitation shortly after. A meeting holds up to 500 participants.
Scope meetings:write. Organizers and co-organizers. The meeting must not be closed or cancelled. Recorded in the audit log.

Path parameters

string
required
The meeting.

Request body

string
A member’s id. Use instead of email.
string
An external guest’s address, up to 320 characters. Use instead of userId.
string
default:"PARTICIPANT"
CO_ORGANIZER (members only), PARTICIPANT or OPTIONAL.

Response

object
required
Last modified on October 4, 2026