Adding expense to a PO

Hi Support,

How to add expense in PO ? Do we have any other process apart from below?

Create an Expense.

From Control --> Landed Cost --> Cost Component Maintenance --> New.

Create an Agent Partner:

From Control --> Partner.

Select from Action tab 'New' and Partner Type 'Agent'. Fill the requested info.

Add the Expenses to Agent.

From Options select 'Expenses'.

Add the new expenses created above, and press OK.

Create the PO and add Agent to it.

From Ordering --> Orders.

Select New Order.

Fill the PO info.

Select from Options menu 'Attributes'.

Select the Agent.

Add items to the PO