An internal employment date does not determine admission or status. Use the actual immigration documents and applicable process.
Coordinate the change without assuming permission
Record when authority and duties change, when the transfer is intended and what immigration steps remain. New-office approval does not automatically last beyond its maximum one-year initial period because a promotion or handover was delayed.
Keep the original submitted plan and record actual staffing, financial and operational developments as they occur, since the extension filing relies on what genuinely happened rather than a restated forecast. Start with the ownership chain: certificates of incorporation for each entity, current share registers or membership schedules, and the purchase agreement and closing documents for the American operation, so that a reader can trace control from one company to the other without inference. Where a closing date threatens to arrive first, the honest options are to appoint someone already authorized, to delay the operational start, or to put a caretaker arrangement in place. A common timing error is filing around a polished future chart while employment agreements or reporting changes still have unresolved effective dates.