Documente-intrare (7)MarkPurchaseInvoiceMarkPurchaseInvoice POST /api/rpc/MarkPurchaseInvoice Metoda permite marcarea unei facturi de intrare cu o incasare/plata sau nota contabila. Request Responses200401502NextUp response envelope (check Result + Error).Missing or invalid token.Proxy/upstream failure (target NextUp unreachable).