iExpense approver cannot see notification in Oracle

Have a situation where the approver is in a different ledger but has an employee assigned to him in another ledger. The approver has an employee setup record and signing limits to his employee with that cost center.

The employee enters an expense report in the US ledger, submits report and approver in CAD ledger receives email for the approval. If the approver logs into Oracle under the a US responsibility, he cannot see / pull up the notification in Oracle. Even changed the employee setup accounting information to the US ledger.

Are there any setups / processes that I am missing? I would think the approver should be able to log into Oracle and under the Expense Home page > Notifications pull up and see the employees expense report. What am I overlooking?