---
title: FulfillmentEventSortKeys - Customer API
description: The set of valid sort keys for the FulfillmentEvent query.
api_version: 2025-10
api_name: customer
type: enum
api_type: graphql
source_url:
  html: https://shopify.dev/docs/api/customer/latest/enums/fulfillmenteventsortkeys
  md: https://shopify.dev/docs/api/customer/latest/enums/fulfillmenteventsortkeys.md
---

# 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](https://shopify.dev/docs/api/customer/latest/objects/Fulfillment#field-events)

  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-events)