DiscountCustomerSelection union

The selection of customers who can use this discount.

Possible types

• [DiscountCustomerAll](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/discountcustomerall)
• [DiscountCustomerSavedSearches](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/discountcustomersavedsearches)
• [DiscountCustomers](https://shopify.dev/docs/admin-api/graphql/reference/discounts-and-marketing/discountcustomers)