Unable to cancel drop ship sales order line

Dear Friends,

We are facing the below error while trying to cancel a drop ship sales order line.

you are not allowed to cancel sales order line because order line has associated purchase orders approved

Here are the details on SO --> REQ --> Standard PO

SO Line is Open.

Requisition is Approved and not cancelled

PO is Cancelled

I have gone through meta link notes and could see multiple answers like.

1. This error is due to Order Management processing constraints and we need to disable them. (393688.1)

2. Once PO is cancelled, we can cancel SO line and the linked requisition line will also be cancelled.