Builds an invoice for the given contractAsk AIpost https://sandbox.billwerk.com/api/v1/contracts/{contractId}/invoicebuilderPath ParamscontractIdstringrequiredContract IdBody ParamsBuilder DTOBillingDatedate-time | nullInvoice billing dateProloguestring | nullEpiloguestring | nullDeliveryPeriodStartdate-time | nullDeliveryPeriodEnddate-time | nullItemListarray of objectsrequiredItemList*ADD objectResponses 200OK 401Unauthorized 404Not Found 422Unprocessable EntityUpdated 3 months ago