Internal Requisition from iProcurement to fulfill within Inv org

Hi,

Requirement is to raise Internal Requisition from iProc to replenish material within destination Inv org.

The employee (From INV1 Org) who raises the requisition may not know whether the stock is available in Inventory (INV1) or not, the system should issue the material if it is available within Inventory (INV1-Quantity available in Sub Inventory) if not it should trigger External Req to Vendor.

In iProcurement if profile option POR:Allow Manual Selection of Source = YES   then the system enables a link to manually select a source. There we could see the stock available within Inv, So is there any way to trigger a Intra Org transfer once Internal Requisition is placed. Appreciate your guidance.