# Validate a EBill object Endpoint: POST /v2/alternative-schemas/ebill/validate Version: 2.0 Security: X-API-Key, api_key ## Request fields (application/json): - `type` (string) The identifier of the business case type Enum: "BILL", "REMINDER" - `recipientEmailAddress` (string) E-mail address of the invoice recipient Example: "john.doe@example.com" - `recipientId` (string) Unique identification of the invoice recipient (e.g. PID) Example: "41010560425610173" - `recipientEnterpriseIdentificationNumber` (string) Enterprise identification number (UID) for companies as invoice recipients (in the eBill for Business context). Example: "CHE123456789" - `referencedBill` (string) invoice number of the referenced business case: This sub-element is optional. It only has to be filled for reminders and rolled over invoices in order to identify the original invoice. Example: "2018-123456-22"