Internal Requisition Auto Approval

  Hi,

We are currently using position hierarchy to approve various  purchasing documents ( IR,PR,PO,BPA..) R12..1.3.

The user wants to disable the approval hierarchy for the only internal requisitions.

This means that in spite of whether a employee in approval hierarchy or not he should be able to approve all IR's.

The rest of documents should go through approval hierarchy..

Is there any standard way to approach this??

Also is it possible to restrict the approval hierarchy for IR's based on inventory organization??

Appreciate your help..

Thanks.