---
title: FulfillmentEventSortKeys - Customer API
description: The set of valid sort keys for the FulfillmentEvent query.
api_version: 2026-10
source_url:
  html: 'https://shopify.dev/docs/api/customer/latest/enums/FulfillmentEventSortKeys'
  md: >-
    https://shopify.dev/docs/api/customer/latest/enums/FulfillmentEventSortKeys.md
api_name: customer
api_type: graphql
type: enum
---

# Fulfillment​Event​Sort​Keys

enum

The set of valid sort keys for the FulfillmentEvent query.

## Valid values

* HAPPENED\_​AT

  Sort by the `happened_at` value.

* ID

  Sort by the `id` value.

***

## Fields

* [Fulfillment.events(sortKey)](https://shopify.dev/docs/api/customer/latest/objects/Fulfillment#field-Fulfillment.fields.events.arguments.sortKey)

  ARGUMENT

  Represents a single fulfillment in an order.

***

## Map

### Arguments with this enum

* [Fulfillment.events(sortKey)](https://shopify.dev/docs/api/customer/latest/objects/Fulfillment#field-Fulfillment.fields.events.arguments.sortKey)