Sometimes you will want to recalculate existing commissions based on changes to your commission plans. There are two methods for you to do this.
To recalculate in bulk, first go to the Reporting tab and open Purchases. Then, as shown below, you can select multiple purchases via the check boxes and use Recalculate Commissions for Selected Purchases from the Actions dropdown.
When you recalculate purchases using the select all checkbox in the purchases tab, it will only recalculate the purchases on that page. You must go through each page and repeat the action to recalculate more than those on the current page.
Be wary of selecting purchases for which commission has already been paid. If you recalculate the commission, a new one will appear, and you may end up paying twice.
You can also recalculate commissions for purchases directly on the full pageview. To do this, first click the purchase ID whose commission you want to recalculate.
On this page, you can edit or cancel the purchase, and (most importantly), recalculate commissions.