AP INVOICE WORKFLOW SETUP

Hi Guys,

How to set Invoice approval workflow without AME. The oracle docs that I have been referring suggests the use of AME but at this point we don't want to setup AME. We want the supervisor approval hierarchy. Is there any way to setup workflow like it is in Purchasing , where we define the approval hierarchy or un-check the option of "Use approval Hierarchies" ( I have un-checked this for payables and executed but of no use).

When I created a Invoice, the approval required in Invoice screen was changed to 'Initiated' and in Invoice approval history the record was in 'Future' with reviewed amount as 0.00 , not sure where the workflow is stuck.