Why am I missing an app or menu item?

It is normal for you and a colleague to see different things in the same system, and this is usually intentional.

Apps are assigned by role

Each app in Dynamics 365 is associated with one or more security roles. If you do not have the app, you do not have the role that grants access to it. This is not an error, but an assignment that has not been made.

Menu items follow table access

If you can see the app but a menu item is missing, you probably don't have read access to the underlying table. The menu hides anything you wouldn't be able to open anyway.

After a role change, you must log in again

Role changes do not always take effect in a session that is already open. Log out completely and log back in before reporting an issue.

What you should include when reporting an issue

Which app or menu you are missing, what you tried to do, and which colleague can see what you cannot. The latter allows the administrator to compare roles directly.