Try setting your environmentName to what’s in the green box, and add the tenant with what’s in the red box

{
“name”: “Your cloud sandbox”,
“request”: “launch”,
“type”: “al”,
“environmentType”: “Sandbox”,
“environmentName”: “CopyDataYuki”,
“tenant”: “xxxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxx”,
“breakOnError”: true,
“launchBrowser”: true,
“enableLongRunningSqlStatements”: true,
“enableSqlInformationDebugger”: true
}