VPP API v2 returns 9609 "Unable to find the registered user." when I disassociate assets from an existing user. Repro step: 1. Create user POST https://vpp.itunes.apple.com/mdm/v2/users/create { "users": [ { "clientUserId": "client-1", "managedAppleId": "valid managed apple id" } ] } => user is associated 2. Retire user POST https://vpp.itunes.apple.com/mdm/v2/users/retire { "users": [ { "clientUserId": "client-1" } ] } => user is retired 3. Recreate user with the same clientUserId POST https://vpp.itunes.apple.com/mdm/v2/users/create { "users": [ { "clientUserId": "client-1", "managedAppleId": "valid managed apple id" } ] } => user is associated 4. Associate asset POST https://vpp.itunes.apple.com/mdm/v2/assets/associate { "assets": [ { "adamId": "408709785" } ], "clientUserIds": [ "client-1" ] } => asset associated 5. Disassociate asset POST https://vpp.itunes.apple.com/mdm/v2/assets/disassociate { "assets": [ { "adamId": "408709785" } ], "clientUserIds": [ "client-1" ] } => {"errorNumber":9609,"errorMessage":"Unable to find the registered user."} Notes associate API works fine with the same payload. disassociate work with v1 API.