Patch(
    task_0008,
    Defaults(task_0008),
    {
        task_name: TextInput1.Text,
        UPN: ComboBox1.Selected.'User Principal Name'
    }
);

ClearCollect(
    task_assignment,
    AddColumns(
        task_0008,
        "DisplayName",Text(LookUp('AAD Users',UPN='User Principal Name','Display Name')),
        "MobilePhone",Text(LookUp('AAD Users',UPN='User Principal Name','Mobile Phone')),
        "CompanyName",Text(LookUp('AAD Users',UPN='User Principal Name','Company Name'))
    )
);