To use full authorization

You can select the Full Authorization check boxes to accept extremely high or low differences in percentage and amount. If you select these check boxes, you cannot enter tolerance amounts or percentages.

For example, you can use this functionality to automatically match invoices with many lines if small differences on each line result in an invoice difference that you do not want to investigate further.

You also need to select the Full Authorization check boxes, for example, if the percentage would become infinite. The percentage is calculated as the absolute value, in the local currency, of (difference amount) / (invoice amount).

If the invoice amount is zero, the percentage becomes infinite. The only way to accept such a tolerance is to select the Full Authorization checkbox.