PO matched invoice with a canceled non-PO line in approval rules spreadsheet (SRC)

We want an invoice that is matched to a PO AND has a canceled non-PO line to route through the approval hierarchy. I have tried setting the 'Discarded Status Indicator' to Y and the invoice errors out after initiation still.

Is 'Y' the wrong input or does it need a qualifier/condition like 'in or =' or do I need to configure more fields in the spreadsheet?

This is in the simplified rules spreadsheet for invoice approvals.