I tried updating the order status using patch method and enum as G. getting 204 response but not seeing any change on the record. the order status for purchase order still remains F(Pending Bill). How do i update the order status? i sent this body in the patch method

"orderStatus": {
        "id": "G",
        "refName": "G"
    }

You need to actually create a bill from the PO for the status to update

@michoel How do i do that via rest?