You have the option to add companies and people at the point of case creation or at a later stage. When adding companies at the point of case creation, you can retrieve company registration data by setting registry_search to true, and ensuring that company_name, company_number, and jurisdiction_code are not empty. If the company registration data cannot be found, the case is created with the provided company details. If the company registration data is found, the status, number_of_officers, and number_of_owners are updated to reflect the registry data. Additionally, you can choose to add all the company's (human) officers to the case by setting add_directors to true. Note that this flag is applicable only when registry_search is set to true.