Default Discount Being Ignored

I have a default discount set up against my Customer, but when I invoice them the discount is 0.

Solution

Check and make sure that the allow discounts is activated under the Admin / Defaults / Manage Customer Defaults - Invoices.

On the Customer Details - Terms / Pricing page, make sure that use Discount Matrix is not ticked, this will override the default discount.

Also check that the Allow Discounts is also ticked against the individual product code.