The POST /environments/{environmentId}/signOnPolicies/{policyId}/actions operation creates the new sign-on policy action resource, which is associated with the sign-on policy ({policyId}) specified in the request URL.

PingOne supports several sign-on policy action types. To initiate a “passwordless” flow, the type property for the action resource associated with the sign-on policy must be set to MULTI_FACTOR_AUTHENTICATION. You are creating a multi-factor workflow that validates the username and prompts users to complete an MFA action.