Allows a user to update an existing buyer at a provided buyer ID.
Users can update IIN if it is not currently set and they can update birthdate if it is not currently set and no credit reports or outstanding loans exist.
Name, phone, and email updates will propagate to the buyer's primary contact. A new contact will be created in some cases.
Partial updates are not supported with the exception of IIN. Any existing IIN will not be overwritten with an empty value if omitted on the payload. The user of this API must supply all other buyer fields in order to avoid omitted fields being deleted or overwritten with empty values.
Upon success, the details of the updated buyer will be returned.