customerId:
ID -
The ID of the customer who will receive the gift card. The ID can't be changed if the gift card already has an assigned customer ID.
expiresOn:
Date -
The date at which the gift card will expire. If set to `null`, then the gift card will never expire.
note:
String -
The note associated with the gift card, which isn't visible to the customer.
templateSuffix:
String -
The suffix of the Liquid template that's used to render the gift card online.
For example, if the value is `birthday`, then the gift card is rendered using the template `gift_card.birthday.liquid`.