We create purchase requisitions which on approval automatically creates a purchase order. When there is a big movement on the currency rates of exchange, final invoices fail on unmatched purchase order totals because the system calculates the difference between the purchase order total at the rate on the date the PO was created and the total of invoices posted on the rate on the date the invoices was posted in the invoice register. If the difference exceeds the tolerance, level it fails.

Which options are available to by-pass foreign currency validation on unmatched purchase order total apart from adjusting tolerance levels?

Workaround: we need to approve the variance from the matching details screen on the purchase order > review > Matching details.