Order Line update for dropship orders in Order Management

Hi

We are creating Dropship orders from e-commerce portal using Oracle REST WebServices, Now we have a requirement to update Order line quantity and request date based on update in e-commerce portal.  We are planning to update order line with order quantity and request date with oe_order API.

Would like to know whether we need to update purchase requisition/purchase order/Blanket Release also using API, if they are created after requisition import.

Thanks

Kamalakar.G