If you have turned on invoice matching you might first want to look at the unit price. For example you can set a price tolerance for all invoices to match sure what was on the purchased order doesn’t vary too much on the invoice.
Here is a quick overview.
AX2012 R3 CU11
Cheers
Lachlan
OrganicAX 
Pingback: AP parameters – match price totals | OrganicAX·
Pingback: AP parameters – match price totals - Microsoft Dynamics AX Community·
Pingback: AP parameters – match price totals - OrganicAX - Microsoft Dynamics AX - Dynamics AX Users - DUG·