How to prevent auto-submitted PO after Smart Form with Negotiated Flag Buyer Assignment?

Summary:

Hi,

I'm creating a Purchase Requisition from a Smart Form with negotiated flag and buyer assignment rule.

After the PR is approved the system automatically creates a Purchase Order which is fine but it also submits the PO for approval immediately.

I already tried removing the option Automatically submit for approval in Configure Procurement Business Function but the PO is still submitted automatically

Is there any setup or workaround to keep the auto created PO in Incomplete status instead of auto submitting it

The expected behavior is PR approved then PO is auto created but the PO should stay in Incomplete status so the buyer can review and submit manually