https://wccftech.com/kingdom-hearts-3-5-million/

Kingdom Hearts 3 has shipped over 5 million copies globally since its release last week, publisher Square Enix has announced.

Shipment data includes both digital and retail shipments for both PlayStation 4 and Xbox One. As Square Enix mentions “shipped” units, which means that 5 million copies of the game have been shipped to retailers, this doesn’t necessarily mean that all copies have been sold-through to consumers yet.