Prior to 7.87: Enter adjustments as negative amounts in the 1099 adjustments on the 1099 Vendor's record.  Negative adjustments are used to reduce the amount of these boxes of the 1099 form.

7.87 and higher: Enter adjustments to these boxes as positive amounts in the 1099 adjustments on the 1099 Vendor's record, which ensures the totals are calculated correctly in the Aatrix grid.