# Create SSO domain Add a domain to a Single Sign-On (SSO) configuration for the specified account (tenant). Endpoint: POST /resources/sso/v1/configurations/{configurationId}/domains Version: 1.0 ## Header parameters: - `frontegg-tenant-id` (string, required) The account (tenant) ID identifier ## Path parameters: - `configurationId` (string, required) ## Response 201 fields