What's the difference between performing a price correction and matching to a purchase order?
A price correction offsets the invoice price variance for the amount previously billed without adjusting the billed quantity on the purchase order.
An invoice or credit memo match to a purchase order updates the billed quantity on the purchase order without offsetting the invoice price variance for the amount previously billed.
Note: The calculation of the invoice price variance follow
this formula: (invoice unit price - purchase order line unit price)
* invoiced quantity.