How do I change the purchase amount limit for gift cards and certificates?
Visit Admin > Site Info > Site Configuration
Click on the Site Configuration (tab)
Scroll down and look for Gift Card Options section
For example, in the screenshot below, purchase amount values are limited to between $5 and $500.
To change this, simply input new value limits, in dollars, for the minimum and maximum price of a gift card in the Min and Max field, respectively.
To save and finish, click Update, which is located on the bottom left of the page.