# v4928.1.5.110 — close guard recognizes completed invoice-send tasks Fixes a mismatch where the opportunity detail and next-action engine could show `CLOSE_OPPORTUNITY`, but the operation button was blocked with “Concluir oportunidade exige evidência de fatura enviada ao cliente”. The workflow guard now treats completed `SEND_INVOICE` tasks for the same current invoice as local evidence that the invoice was sent to the customer, matching the central opportunity-flow evidence builder. Expected for VIDRALGAR / Maria Cândida style cases: - invoice linked - payment confirmed - WH/OUT done - completed `SEND_INVOICE` task - `Concluir oportunidade` button allowed