Purchasing Hierarchy

Purchasing hierarchy.

There is a requirement where COO has the powers to approve amount less than 100000.

After that there is a branchiing.

If it is expense, then the approval must go to CEO (above 100000)

If it is an asset, then the approval must go to chairman (above 100000

I have created 2 hierarchy.One is Expense and other is Asset.

we dont have inventory and we use item categories.

Is there a way to default the hierarchy based on category?

Or is there any other way to rourte the approval this way?

Or the only way is to change the hierarchy while submitting the PO.