How to manage the security of expense tiles displayed in peoplesoft mobile expense

Hi,

We have a requirement where we want to show the Mobile Expense "Approval" tile to users, what is the permission list/security we need to setup in peoplesoft inorder to achieve this requirement.

When I use the approval fluid delivered role(having EOAW2200) permission list, it displays the "Approval" tile as well as "Expense" in mobile expense. Although user can not access the "Expense" tile/page in mobile expense as this role only enables the "Approval" tile. But still the ""Expense Tile" show on the home page. Is there any way to hide/remove this additional tile from display by setting up some security.