Cause
allow_tenant_audience in Surveys requires at least one granted modality.
What to do
Grant a modality in allowed_modalities.
application/problem+json
{
"type": "https://masnet.com/developers/errors/audience_without_modalities",
"title": "Audience without modalities",
"status": 422,
"detail": "...",
"code": "audience_without_modalities",
"correlation_id": "..."
}