Controls whether income certification data is included in the response. When provided, each employment, account, and income source in the response is annotated with a certification object containing the certification decision, rejection reason, rejection comment, and certified data fields. Additionally, the response includes additional_income_sources derived from individually certified bank deposits (e.g., gig income) that are not associated with a recognized income source. When omitted, the response does not include any certification-related fields.
