Success

Success-code shape varies by integration path: "000" per the OSCU spec §4.18 — and live signings against the real VSDC 2.0.6 sandbox JAR also return "000" (verified 2026-07-06); "0000" observed live from GavaConnect; "00" reported for the VSCU JAR but unconfirmed by direct observation. Never hardcode a single string. Always check membership in {"0", "00", "000", "0000"}.