Call of Duty: Warzone is no longer playable on PlayStation 4 or Xbox One. Access ended with the battle royale's Modern Warfare 4 Season 1 integration on November 6, closing off both last-generation versions while the game continues on supported hardware.
Players do not have to abandon their Activision accounts to keep playing. However, moving to another platform does not transfer every purchase or currency balance in the same way.
What carries over from PS4 and Xbox One
Activision's platform-update support page says progression and content bought with COD Points carry to supported platforms when players sign in with the same linked Activision account.
Unspent COD Points have a narrower transfer rule. Purchased points and those earned through Battle Pass progression remain tied to platform accounts, so a PS4 balance can be used on PS5, while an Xbox One balance can be used on Xbox Series X|S. Moving from PlayStation to Xbox or PC does not bring that balance along.
Most content bought directly with real money is also restricted to the same console family. That distinction is worth checking before choosing where to resume playing: an account's COD Points purchases and its remaining COD Points balance follow different rules.
The shutdown applies to Warzone, not every Call of Duty
The closure completes a staged withdrawal. Activision removed Warzone from PS4 and Xbox One digital storefronts on June 4 and removed its in-game store on June 25. Existing library owners could still reinstall and play through the end of Black Ops 7 Season 6, but that access has now ended.
The official Season 1 announcement set November 6 as the start of the Modern Warfare 4 integration and explicitly confirmed that PS4 and Xbox One would no longer be supported. The update adds the Hajin battle royale map and Zodiac Resurgence map, alongside Warzone's launch on Nintendo Switch 2. Players can also continue on PS5, Xbox Series X|S and supported PCs.
Activision says other Call of Duty games originally released on PS4 and Xbox One remain available to play. This change concerns those consoles' versions of Warzone, not a blanket shutdown of their Call of Duty libraries.