post
https://api.sandbox.com/v1/beneficiaries//pay-in-accounts/business-owner
Adds business owner details to a beneficiary account, including ownership percentage, personal identification of ultimate beneficial owners (UBOs), and beneficial ownership disclosure. This information is required for KYB compliance and anti-money laundering (AML) regulations, which mandate identifying individuals who own or control more than 25% of a business entity. Multiple owners can be registered if the business has several UBOs.