Pull fresh supplier invoices from the ANAF SPV inbox.
code: "sync_in_progress" and a Retry-After header.
days (1–60) to fetch a fixed window. When omitted, Contazen picks the
window automatically based on the time since the last successful sync (1 →
60 days).Use your API key (sk_live_xxx or sk_test_xxx)
How far back to fetch (1–60). When omitted, the window is chosen automatically based on the time since the last sync.
1 <= x <= 60