---
title: orderEditAddLineItemDiscount - GraphQL Admin
description: Adds a discount to a line item on the current order edit. For more information on how to use the GraphQL Admin API to edit an existing order, refer to [Edit existing orders](https://shopify.dev/apps/fulfillment/order-management-apps/order-editing).
api_version: 2025-10
api_name: admin
type: mutation
api_type: graphql
source_url:
  html: https://shopify.dev/docs/api/admin-graphql/latest/mutations/orderEditAddLineItemDiscount
  md: https://shopify.dev/docs/api/admin-graphql/latest/mutations/orderEditAddLineItemDiscount.md
---

# order​Edit​Add​Line​Item​Discount

mutation

Requires `write_order_edits` access scope. Also: The user must have apply\_discounts\_to\_orders permission.

Adds a discount to a line item on the current order edit. For more information on how to use the GraphQL Admin API to edit an existing order, refer to [Edit existing orders](https://shopify.dev/apps/fulfillment/order-management-apps/order-editing).

## Arguments

* discount

  [Order​Edit​Applied​Discount​Input!](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/OrderEditAppliedDiscountInput)

  required

  The discount to add to the line item.

* id

  [ID!](https://shopify.dev/docs/api/admin-graphql/latest/scalars/ID)

  required

  The ID of the [calculated order](https://shopify.dev/api/admin-graphql/latest/objects/calculatedorder) or the order edit session to edit.

* line​Item​Id

  [ID!](https://shopify.dev/docs/api/admin-graphql/latest/scalars/ID)

  required

  The ID of the calculated line item to add the discount to.

***

## Order​Edit​Add​Line​Item​Discount​Payload returns

* added​Discount​Staged​Change

  [Order​Staged​Change​Add​Line​Item​Discount](https://shopify.dev/docs/api/admin-graphql/latest/objects/OrderStagedChangeAddLineItemDiscount)

  The discount applied to a line item during this order edit.

* calculated​Line​Item

  [Calculated​Line​Item](https://shopify.dev/docs/api/admin-graphql/latest/objects/CalculatedLineItem)

  The line item with the edits applied but not saved.

* calculated​Order

  [Calculated​Order](https://shopify.dev/docs/api/admin-graphql/latest/objects/CalculatedOrder)

  An order with the edits applied but not saved.

* order​Edit​Session

  [Order​Edit​Session](https://shopify.dev/docs/api/admin-graphql/latest/objects/OrderEditSession)

  The order edit session with the edits applied but not saved.

* user​Errors

  [\[User​Error!\]!](https://shopify.dev/docs/api/admin-graphql/latest/objects/UserError)

  non-null

  The list of errors that occurred from executing the mutation.

***

## Examples

* ### Add a 50% discount to a line item in an order edit

  #### Query

  ```graphql
  mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
    orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
      calculatedOrder {
        id
      }
      calculatedLineItem {
        id
        calculatedDiscountAllocations {
          discountApplication {
            id
          }
        }
      }
      addedDiscountStagedChange {
        id
        description
        value {
          __typename
          ... on PricingPercentageValue {
            percentage
          }
        }
      }
      userErrors {
        field
        message
      }
    }
  }
  ```

  #### Variables

  ```json
  {
    "id": "gid://shopify/CalculatedOrder/607673109",
    "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
    "discount": {
      "description": "50% off promotion",
      "percentValue": 50
    }
  }
  ```

  #### cURL

  ```bash
  curl -X POST \
  https://your-development-store.myshopify.com/admin/api/2025-10/graphql.json \
  -H 'Content-Type: application/json' \
  -H 'X-Shopify-Access-Token: {access_token}' \
  -d '{
  "query": "mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) { orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) { calculatedOrder { id } calculatedLineItem { id calculatedDiscountAllocations { discountApplication { id } } } addedDiscountStagedChange { id description value { __typename ... on PricingPercentageValue { percentage } } } userErrors { field message } } }",
   "variables": {
      "id": "gid://shopify/CalculatedOrder/607673109",
      "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
      "discount": {
        "description": "50% off promotion",
        "percentValue": 50
      }
    }
  }'
  ```

  #### React Router

  ```javascript
  import { authenticate } from "../shopify.server";

  export const loader = async ({request}) => {
    const { admin } = await authenticate.admin(request);
    const response = await admin.graphql(
      `#graphql
    mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
      orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
        calculatedOrder {
          id
        }
        calculatedLineItem {
          id
          calculatedDiscountAllocations {
            discountApplication {
              id
            }
          }
        }
        addedDiscountStagedChange {
          id
          description
          value {
            __typename
            ... on PricingPercentageValue {
              percentage
            }
          }
        }
        userErrors {
          field
          message
        }
      }
    }`,
    {
      variables: {
          "id": "gid://shopify/CalculatedOrder/607673109",
          "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
          "discount": {
              "description": "50% off promotion",
              "percentValue": 50
          }
      },
    },
    );
    const json = await response.json();
    return json.data;
  }
  ```

  #### Ruby

  ```ruby
  session = ShopifyAPI::Auth::Session.new(
    shop: "your-development-store.myshopify.com",
    access_token: access_token
  )
  client = ShopifyAPI::Clients::Graphql::Admin.new(
    session: session
  )

  query = <<~QUERY
    mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
      orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
        calculatedOrder {
          id
        }
        calculatedLineItem {
          id
          calculatedDiscountAllocations {
            discountApplication {
              id
            }
          }
        }
        addedDiscountStagedChange {
          id
          description
          value {
            __typename
            ... on PricingPercentageValue {
              percentage
            }
          }
        }
        userErrors {
          field
          message
        }
      }
    }
  QUERY

  variables = {
    "id": "gid://shopify/CalculatedOrder/607673109",
    "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
    "discount": {
      "description": "50% off promotion",
      "percentValue": 50
    }
  }

  response = client.query(query: query, variables: variables)
  ```

  #### Node.js

  ```javascript
  const client = new shopify.clients.Graphql({session});
  const data = await client.query({
    data: {
      "query": `mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
        orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
          calculatedOrder {
            id
          }
          calculatedLineItem {
            id
            calculatedDiscountAllocations {
              discountApplication {
                id
              }
            }
          }
          addedDiscountStagedChange {
            id
            description
            value {
              __typename
              ... on PricingPercentageValue {
                percentage
              }
            }
          }
          userErrors {
            field
            message
          }
        }
      }`,
      "variables": {
          "id": "gid://shopify/CalculatedOrder/607673109",
          "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
          "discount": {
              "description": "50% off promotion",
              "percentValue": 50
          }
      },
    },
  });
  ```

  #### Response

  ```json
  {
    "orderEditAddLineItemDiscount": {
      "calculatedOrder": {
        "id": "gid://shopify/CalculatedOrder/607673109"
      },
      "calculatedLineItem": {
        "id": "gid://shopify/CalculatedLineItem/510711879",
        "calculatedDiscountAllocations": [
          {
            "discountApplication": {
              "id": "gid://shopify/CalculatedManualDiscountApplication/68bd25c3-b74e-4250-814f-9fec0549c043"
            }
          }
        ]
      },
      "addedDiscountStagedChange": {
        "id": "gid://shopify/OrderStagedChangeAddLineItemDiscount/925898897",
        "description": "50% off promotion",
        "value": {
          "__typename": "PricingPercentageValue",
          "percentage": 50
        }
      },
      "userErrors": []
    }
  }
  ```

* ### orderEditAddLineItemDiscount reference

[Open in GraphiQL](http://localhost:3457/graphiql?query=mutation%20orderEditAddLineItemDiscount\(%24id%3A%20ID!%2C%20%24lineItemId%3A%20ID!%2C%20%24discount%3A%20OrderEditAppliedDiscountInput!\)%20%7B%0A%20%20orderEditAddLineItemDiscount\(id%3A%20%24id%2C%20lineItemId%3A%20%24lineItemId%2C%20discount%3A%20%24discount\)%20%7B%0A%20%20%20%20calculatedOrder%20%7B%0A%20%20%20%20%20%20id%0A%20%20%20%20%7D%0A%20%20%20%20calculatedLineItem%20%7B%0A%20%20%20%20%20%20id%0A%20%20%20%20%20%20calculatedDiscountAllocations%20%7B%0A%20%20%20%20%20%20%20%20discountApplication%20%7B%0A%20%20%20%20%20%20%20%20%20%20id%0A%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%7D%0A%20%20%20%20%7D%0A%20%20%20%20addedDiscountStagedChange%20%7B%0A%20%20%20%20%20%20id%0A%20%20%20%20%20%20description%0A%20%20%20%20%20%20value%20%7B%0A%20%20%20%20%20%20%20%20__typename%0A%20%20%20%20%20%20%20%20...%20on%20PricingPercentageValue%20%7B%0A%20%20%20%20%20%20%20%20%20%20percentage%0A%20%20%20%20%20%20%20%20%7D%0A%20%20%20%20%20%20%7D%0A%20%20%20%20%7D%0A%20%20%20%20userErrors%20%7B%0A%20%20%20%20%20%20field%0A%20%20%20%20%20%20message%0A%20%20%20%20%7D%0A%20%20%7D%0A%7D\&variables=%7B%0A%20%20%22id%22%3A%20%22gid%3A%2F%2Fshopify%2FCalculatedOrder%2F607673109%22%2C%0A%20%20%22lineItemId%22%3A%20%22gid%3A%2F%2Fshopify%2FCalculatedLineItem%2F510711879%22%2C%0A%20%20%22discount%22%3A%20%7B%0A%20%20%20%20%22description%22%3A%20%2250%25%20off%20promotion%22%2C%0A%20%20%20%20%22percentValue%22%3A%2050%0A%20%20%7D%0A%7D)

```javascript
import { authenticate } from "../shopify.server";


export const loader = async ({request}) => {
  const { admin } = await authenticate.admin(request);
  const response = await admin.graphql(
    `#graphql
  mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
    orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
      calculatedOrder {
        id
      }
      calculatedLineItem {
        id
        calculatedDiscountAllocations {
          discountApplication {
            id
          }
        }
      }
      addedDiscountStagedChange {
        id
        description
        value {
          __typename
          ... on PricingPercentageValue {
            percentage
          }
        }
      }
      userErrors {
        field
        message
      }
    }
  }`,
  {
    variables: {
        "id": "gid://shopify/CalculatedOrder/607673109",
        "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
        "discount": {
            "description": "50% off promotion",
            "percentValue": 50
        }
    },
  },
  );
  const json = await response.json();
  return json.data;
}
```

##### GQL

```
mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
  orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
    calculatedOrder {
      id
    }
    calculatedLineItem {
      id
      calculatedDiscountAllocations {
        discountApplication {
          id
        }
      }
    }
    addedDiscountStagedChange {
      id
      description
      value {
        __typename
        ... on PricingPercentageValue {
          percentage
        }
      }
    }
    userErrors {
      field
      message
    }
  }
}
```

##### cURL

```
curl -X POST \
https://your-development-store.myshopify.com/admin/api/2025-10/graphql.json \
-H 'Content-Type: application/json' \
-H 'X-Shopify-Access-Token: {access_token}' \
-d '{
"query": "mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) { orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) { calculatedOrder { id } calculatedLineItem { id calculatedDiscountAllocations { discountApplication { id } } } addedDiscountStagedChange { id description value { __typename ... on PricingPercentageValue { percentage } } } userErrors { field message } } }",
 "variables": {
    "id": "gid://shopify/CalculatedOrder/607673109",
    "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
    "discount": {
      "description": "50% off promotion",
      "percentValue": 50
    }
  }
}'
```

##### React Router

```
import { authenticate } from "../shopify.server";

export const loader = async ({request}) => {
  const { admin } = await authenticate.admin(request);
  const response = await admin.graphql(
    `#graphql
  mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
    orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
      calculatedOrder {
        id
      }
      calculatedLineItem {
        id
        calculatedDiscountAllocations {
          discountApplication {
            id
          }
        }
      }
      addedDiscountStagedChange {
        id
        description
        value {
          __typename
          ... on PricingPercentageValue {
            percentage
          }
        }
      }
      userErrors {
        field
        message
      }
    }
  }`,
  {
    variables: {
        "id": "gid://shopify/CalculatedOrder/607673109",
        "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
        "discount": {
            "description": "50% off promotion",
            "percentValue": 50
        }
    },
  },
  );
  const json = await response.json();
  return json.data;
}
```

##### Node.js

```
const client = new shopify.clients.Graphql({session});
const data = await client.query({
  data: {
    "query": `mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
      orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
        calculatedOrder {
          id
        }
        calculatedLineItem {
          id
          calculatedDiscountAllocations {
            discountApplication {
              id
            }
          }
        }
        addedDiscountStagedChange {
          id
          description
          value {
            __typename
            ... on PricingPercentageValue {
              percentage
            }
          }
        }
        userErrors {
          field
          message
        }
      }
    }`,
    "variables": {
        "id": "gid://shopify/CalculatedOrder/607673109",
        "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
        "discount": {
            "description": "50% off promotion",
            "percentValue": 50
        }
    },
  },
});
```

##### Ruby

```
session = ShopifyAPI::Auth::Session.new(
  shop: "your-development-store.myshopify.com",
  access_token: access_token
)
client = ShopifyAPI::Clients::Graphql::Admin.new(
  session: session
)

query = <<~QUERY
  mutation orderEditAddLineItemDiscount($id: ID!, $lineItemId: ID!, $discount: OrderEditAppliedDiscountInput!) {
    orderEditAddLineItemDiscount(id: $id, lineItemId: $lineItemId, discount: $discount) {
      calculatedOrder {
        id
      }
      calculatedLineItem {
        id
        calculatedDiscountAllocations {
          discountApplication {
            id
          }
        }
      }
      addedDiscountStagedChange {
        id
        description
        value {
          __typename
          ... on PricingPercentageValue {
            percentage
          }
        }
      }
      userErrors {
        field
        message
      }
    }
  }
QUERY

variables = {
  "id": "gid://shopify/CalculatedOrder/607673109",
  "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
  "discount": {
    "description": "50% off promotion",
    "percentValue": 50
  }
}

response = client.query(query: query, variables: variables)
```

## Input variables

JSON

```json
{
  "id": "gid://shopify/CalculatedOrder/607673109",
  "lineItemId": "gid://shopify/CalculatedLineItem/510711879",
  "discount": {
    "description": "50% off promotion",
    "percentValue": 50
  }
}
```

## Response

JSON

```json
{
  "orderEditAddLineItemDiscount": {
    "calculatedOrder": {
      "id": "gid://shopify/CalculatedOrder/607673109"
    },
    "calculatedLineItem": {
      "id": "gid://shopify/CalculatedLineItem/510711879",
      "calculatedDiscountAllocations": [
        {
          "discountApplication": {
            "id": "gid://shopify/CalculatedManualDiscountApplication/68bd25c3-b74e-4250-814f-9fec0549c043"
          }
        }
      ]
    },
    "addedDiscountStagedChange": {
      "id": "gid://shopify/OrderStagedChangeAddLineItemDiscount/925898897",
      "description": "50% off promotion",
      "value": {
        "__typename": "PricingPercentageValue",
        "percentage": 50
      }
    },
    "userErrors": []
  }
}
```