Payment Entry Issue with Grand total and Rounded Total

Thanks Peter - yes these exchanges support your interpretation that Rounded Total represents the payment amount due, at least in the case of Sales Invoice and Sales Order.

So why a PO does not seem to follow that covention, unless as you say rounding must be disabled in that case.

https://support.erpnext.com/kb/accounting/purchase-invoice-round-off-account

https://erpnext.org/docs/user/manual/en/customize-erpnext/articles/disable-rounded-total