---
title: appSubscriptionLineItemUpdate - GraphQL Admin
description: Updates the capped amount on the usage pricing plan of an app subscription line item.
api_version: 2025-10
api_name: admin
type: mutation
api_type: graphql
source_url:
  html: https://shopify.dev/docs/api/admin-graphql/latest/mutations/appsubscriptionlineitemupdate
  md: https://shopify.dev/docs/api/admin-graphql/latest/mutations/appsubscriptionlineitemupdate.md
---

# app​Subscription​Line​Item​Update

mutation

Updates the capped amount on the usage pricing plan of an app subscription line item.

## Arguments

* capped​Amount

  [Money​Input!](https://shopify.dev/docs/api/admin-graphql/latest/input-objects/MoneyInput)

  required

  The new maximum amount of usage charges that can be incurred within a subscription billing interval.

* id

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

  required

  The ID of the app subscription line item to be updated.

***

## App​Subscription​Line​Item​Update​Payload returns

* app​Subscription

  [App​Subscription](https://shopify.dev/docs/api/admin-graphql/latest/objects/AppSubscription)

  The updated app subscription.

* confirmation​Url

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

  The URL where the merchant approves or declines the updated app subscription line item.

* 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

* ### Updates the capped amount of a recurring application charge

  #### Description

  You can modify the capped amount on a usage pricing plan.

  #### Query

  ```graphql
  mutation appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
    appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
      userErrors {
        field
        message
      }
      confirmationUrl
      appSubscription {
        id
      }
    }
  }
  ```

  #### Variables

  ```json
  {
    "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
    "cappedAmount": {
      "amount": 100,
      "currencyCode": "USD"
    }
  }
  ```

  #### 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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) { appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) { userErrors { field message } confirmationUrl appSubscription { id } } }",
   "variables": {
      "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
      "cappedAmount": {
        "amount": 100,
        "currencyCode": "USD"
      }
    }
  }'
  ```

  #### 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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
      appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
        userErrors {
          field
          message
        }
        confirmationUrl
        appSubscription {
          id
        }
      }
    }`,
    {
      variables: {
          "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
          "cappedAmount": {
              "amount": 100,
              "currencyCode": "USD"
          }
      },
    },
    );
    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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
      appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
        userErrors {
          field
          message
        }
        confirmationUrl
        appSubscription {
          id
        }
      }
    }
  QUERY

  variables = {
    "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
    "cappedAmount": {
      "amount": 100,
      "currencyCode": "USD"
    }
  }

  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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
        appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
          userErrors {
            field
            message
          }
          confirmationUrl
          appSubscription {
            id
          }
        }
      }`,
      "variables": {
          "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
          "cappedAmount": {
              "amount": 100,
              "currencyCode": "USD"
          }
      },
    },
  });
  ```

  #### Response

  ```json
  {
    "appSubscriptionLineItemUpdate": {
      "userErrors": [],
      "confirmationUrl": "https://billingshop.myshopify.com/admin/charges/193172482/1029266946/RecurringApplicationCharge/confirm_update_capped_amount?signature=BAh7BzoHaWRpBAJeWT06EmF1dG9fYWN0aXZhdGVG--5d28879b4ac4355216b7e6d2f861f9c245272daa",
      "appSubscription": {
        "id": "gid://shopify/AppSubscription/1029266946"
      }
    }
  }
  ```

* ### appSubscriptionLineItemUpdate reference

[Open in GraphiQL](http://localhost:3457/graphiql?query=mutation%20appSubscriptionLineItemUpdate\(%24cappedAmount%3A%20MoneyInput!%2C%20%24id%3A%20ID!\)%20%7B%0A%20%20appSubscriptionLineItemUpdate\(cappedAmount%3A%20%24cappedAmount%2C%20id%3A%20%24id\)%20%7B%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%20%20confirmationUrl%0A%20%20%20%20appSubscription%20%7B%0A%20%20%20%20%20%20id%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%2FAppSubscriptionLineItem%2F1029266946%3Fv%3D1%26index%3D1%22%2C%0A%20%20%22cappedAmount%22%3A%20%7B%0A%20%20%20%20%22amount%22%3A%20100%2C%0A%20%20%20%20%22currencyCode%22%3A%20%22USD%22%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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
    appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
      userErrors {
        field
        message
      }
      confirmationUrl
      appSubscription {
        id
      }
    }
  }`,
  {
    variables: {
        "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
        "cappedAmount": {
            "amount": 100,
            "currencyCode": "USD"
        }
    },
  },
  );
  const json = await response.json();
  return json.data;
}
```

##### GQL

```
mutation appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
  appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
    userErrors {
      field
      message
    }
    confirmationUrl
    appSubscription {
      id
    }
  }
}
```

##### 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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) { appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) { userErrors { field message } confirmationUrl appSubscription { id } } }",
 "variables": {
    "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
    "cappedAmount": {
      "amount": 100,
      "currencyCode": "USD"
    }
  }
}'
```

##### 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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
    appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
      userErrors {
        field
        message
      }
      confirmationUrl
      appSubscription {
        id
      }
    }
  }`,
  {
    variables: {
        "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
        "cappedAmount": {
            "amount": 100,
            "currencyCode": "USD"
        }
    },
  },
  );
  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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
      appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
        userErrors {
          field
          message
        }
        confirmationUrl
        appSubscription {
          id
        }
      }
    }`,
    "variables": {
        "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
        "cappedAmount": {
            "amount": 100,
            "currencyCode": "USD"
        }
    },
  },
});
```

##### 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 appSubscriptionLineItemUpdate($cappedAmount: MoneyInput!, $id: ID!) {
    appSubscriptionLineItemUpdate(cappedAmount: $cappedAmount, id: $id) {
      userErrors {
        field
        message
      }
      confirmationUrl
      appSubscription {
        id
      }
    }
  }
QUERY

variables = {
  "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
  "cappedAmount": {
    "amount": 100,
    "currencyCode": "USD"
  }
}

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

## Input variables

JSON

```json
{
  "id": "gid://shopify/AppSubscriptionLineItem/1029266946?v=1&index=1",
  "cappedAmount": {
    "amount": 100,
    "currencyCode": "USD"
  }
}
```

## Response

JSON

```json
{
  "appSubscriptionLineItemUpdate": {
    "userErrors": [],
    "confirmationUrl": "https://billingshop.myshopify.com/admin/charges/193172482/1029266946/RecurringApplicationCharge/confirm_update_capped_amount?signature=BAh7BzoHaWRpBAJeWT06EmF1dG9fYWN0aXZhdGVG--5d28879b4ac4355216b7e6d2f861f9c245272daa",
    "appSubscription": {
      "id": "gid://shopify/AppSubscription/1029266946"
    }
  }
}
```