Invoice Validation Issue with PO-to-Invoice Matching with Tolerance

I have a quandary with validating an invoice that was matched to a purchase order.

PO was created in the amount of $500.00. The supplier site has been setup up with an PO Matching price invoice tolerance of 10%.

The PO was matched to an invoice created in the amount of $549.00, which is within the 10% tolerance.

However, when trying to validate the invoice, the system put a Dist Variance hold on the invoice due to the variance in the invoice total versus the invoice distribution total.

In order to circumvent this, an additional distribution line was added to the invoice in the amount of the variance between the PO amount and the Invoice amount.