ReferenceType: "cart" | "cart-discount" | "category" | "channel" | "customer" | "customer-group" | "discount-code" | "key-value-document" | "order" | "payment" | "price" | "product" | "product-discount" | "product-type" | "product-variant" | "shipping-method" | "state" | "store" | "tax-category" | "type" | string
The type of the referenced resource.