Magento Commerce, 1.14.x
Gift Card Configuration

The Gift Card configuration establishes the default settings for all gift cards sold through your store. The code pool is a pre-generated set of unique gift card codes in a specific format. Codes from the code pool are used each time a gift card account is created. It is the responsibility of the administrator to ensure that there are enough codes available for the gift cards. Make sure to generate a code pool before offering gift cards for sale. By default, Magento generates 1,000 codes. A new pool is not generated if there are still unused codes available.