medusa-store/www/apps/resources/app/commerce-modules/sales-channel/links-to-other-modules/page.mdx

import { CodeTabs, CodeTab } from "docs-ui"

export const metadata = {
  title: `Links between Sales Channel Module and Other Modules`,
}

# {metadata.title}

This document showcases the module links defined between the Sales Channel Module and other commerce modules.

## Summary

The Sales Channel Module has the following links to other modules:

<Note title="Tip">

Read-only links are used to query data across modules, but the relations aren't stored in a pivot table in the database.

</Note>

- [`ApiKey` data model of the API Key Module \<\> `SalesChannel` data model](#api-key-module).
- [`SalesChannel` data model \<\> `Cart` data model of the Cart Module](#cart-module). (Read-only)
- [`SalesChannel` data model \<\> `Order` data model of the Order Module](#order-module). (Read-only)
- [`Product` data model of the Product Module \<\> `SalesChannel` data model](#product-module).
- [`SalesChannel` data model \<\> `StockLocation` data model of the Stock Location Module](#stock-location-module).

---

## API Key Module

A publishable API key allows you to easily specify the sales channel scope in a client request.

Medusa defines a link between the `ApiKey` and the `SalesChannel` data models.

![A diagram showcasing an example of how resources from the Sales Channel and API Key modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709812064/Medusa%20Resources/sales-channel-api-key_zmqi2l.jpg)

### Retrieve with Query

To retrieve the API keys associated with a sales channel with [Query](!docs!/learn/fundamentals/module-links/query), pass `publishable_api_keys.*` in `fields`:

<CodeTabs group="relation-query">
  <CodeTab label="query.graph" value="method">

```ts
const { data: salesChannels } = await query.graph({
  entity: "sales_channel",
  fields: [
    "publishable_api_keys.*",
  ],
})

// salesChannels.publishable_api_keys
```

  </CodeTab>
  <CodeTab label="useQueryGraphStep" value="step">

```ts
import { useQueryGraphStep } from "@medusajs/medusa/core-flows"

// ...

const { data: salesChannels } = useQueryGraphStep({
  entity: "sales_channel",
  fields: [
    "publishable_api_keys.*",
  ],
})

// salesChannels.publishable_api_keys
```

  </CodeTab>
</CodeTabs>

### Manage with Remote Link

To manage the sales channels of an API key, use [Remote Link](!docs!/learn/fundamentals/module-links/remote-link):

<CodeTabs group="relation-link">
  <CodeTab label="remoteLink.create" value="method">

```ts
import { Modules } from "@medusajs/framework/utils"

// ...

await remoteLink.create({
  [Modules.API_KEY]: {
    api_key_id: "apk_123",
  },
  [Modules.SALES_CHANNEL]: {
    sales_channel_id: "sc_123",
  },
})
```

  </CodeTab>
  <CodeTab label="createRemoteLinkStep" value="step">

```ts
import { Modules } from "@medusajs/framework/utils"
import { createRemoteLinkStep } from "@medusajs/medusa/core-flows"

// ...

createRemoteLinkStep({
  [Modules.API_KEY]: {
    api_key_id: "apk_123",
  },
  [Modules.SALES_CHANNEL]: {
    sales_channel_id: "sc_123",
  },
})
```

  </CodeTab>
</CodeTabs>

---

## Cart Module

Medusa defines a read-only link between the `SalesChannel` data model and the [Cart Module](../../cart/page.mdx)'s `SalesChannel` data model. This means you can retrieve the details of a sales channel's carts, but you don't manage the links in a pivot table in the database. The sales channel of a cart is determined by the `sales_channel_id` property of the `Cart` data model.

### Retrieve with Query

To retrieve the carts of a sales channel with [Query](!docs!/learn/fundamentals/module-links/query), pass `carts.*` in `fields`:

<CodeTabs group="relation-query">
  <CodeTab label="query.graph" value="method">

```ts
const { data: salesChannels } = await query.graph({
  entity: "sales_channel",
  fields: [
    "carts.*",
  ],
})

// salesChannels.carts
```

  </CodeTab>
  <CodeTab label="useQueryGraphStep" value="step">

```ts
import { useQueryGraphStep } from "@medusajs/medusa/core-flows"

// ...

const { data: salesChannels } = useQueryGraphStep({
  entity: "sales_channel",
  fields: [
    "carts.*",
  ],
})

// salesChannels.carts
```

  </CodeTab>
</CodeTabs>

---

## Order Module

Medusa defines a read-only link between the `SalesChannel` data model and the [Order Module](../../order/page.mdx)'s `Order` data model. This means you can retrieve the details of a sales channel's orders, but you don't manage the links in a pivot table in the database. The sales channel of an order is determined by the `sales_channel_id` property of the `Order` data model.

### Retrieve with Query

To retrieve the orders of a sales channel with [Query](!docs!/learn/fundamentals/module-links/query), pass `orders.*` in `fields`:

<CodeTabs group="relation-query">
  <CodeTab label="query.graph" value="method">

```ts
const { data: salesChannels } = await query.graph({
  entity: "sales_channel",
  fields: [
    "orders.*",
  ],
})

// salesChannels.orders
```

  </CodeTab>
  <CodeTab label="useQueryGraphStep" value="step">

```ts
import { useQueryGraphStep } from "@medusajs/medusa/core-flows"

// ...

const { data: salesChannels } = useQueryGraphStep({
  entity: "sales_channel",
  fields: [
    "orders.*",
  ],
})

// salesChannels.orders
```

  </CodeTab>
</CodeTabs>

---

## Product Module

A product has different availability for different sales channels. Medusa defines a link between the `Product` and the `SalesChannel` data models.

![A diagram showcasing an example of how resources from the Sales Channel and Product modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1709809833/Medusa%20Resources/product-sales-channel_t848ik.jpg)

A product can be available in more than one sales channel. You can retrieve only the products of a sales channel.

### Retrieve with Query

To retrieve the products of a sales channel with [Query](!docs!/learn/fundamentals/module-links/query), pass `products.*` in `fields`:

<CodeTabs group="relation-query">
  <CodeTab label="query.graph" value="method">

```ts
const { data: salesChannels } = await query.graph({
  entity: "sales_channel",
  fields: [
    "products.*",
  ],
})

// salesChannels.products
```

  </CodeTab>
  <CodeTab label="useQueryGraphStep" value="step">

```ts
import { useQueryGraphStep } from "@medusajs/medusa/core-flows"

// ...

const { data: salesChannels } = useQueryGraphStep({
  entity: "sales_channel",
  fields: [
    "products.*",
  ],
})

// salesChannels.products
```

  </CodeTab>
</CodeTabs>

### Manage with Remote Link

To manage the sales channels of a product, use [Remote Link](!docs!/learn/fundamentals/module-links/remote-link):

<CodeTabs group="relation-link">
  <CodeTab label="remoteLink.create" value="method">

```ts
import { Modules } from "@medusajs/framework/utils"

// ...

await remoteLink.create({
  [Modules.PRODUCT]: {
    product_id: "prod_123",
  },
  [Modules.SALES_CHANNEL]: {
    sales_channel_id: "sc_123",
  },
})
```

  </CodeTab>
  <CodeTab label="createRemoteLinkStep" value="step">

```ts
import { Modules } from "@medusajs/framework/utils"
import { createRemoteLinkStep } from "@medusajs/medusa/core-flows"

// ...

createRemoteLinkStep({
  [Modules.PRODUCT]: {
    product_id: "prod_123",
  },
  [Modules.SALES_CHANNEL]: {
    sales_channel_id: "sc_123",
  },
})
```

  </CodeTab>
</CodeTabs>

---

## Stock Location Module

A stock location is associated with a sales channel. This scopes inventory quantities associated with that stock location by the associated sales channel.

Medusa defines a link between the `SalesChannel` and `StockLocation` data models.

![A diagram showcasing an example of how resources from the Sales Channel and Stock Location modules are linked](https://res.cloudinary.com/dza7lstvk/image/upload/v1716796872/Medusa%20Resources/sales-channel-location_cqrih1.jpg)

### Retrieve with Query

To retrieve the stock locations of a sales channel with [Query](!docs!/learn/fundamentals/module-links/query), pass `stock_locations.*` in `fields`:

<CodeTabs group="relation-query">
  <CodeTab label="query.graph" value="method">

```ts
const { data: salesChannels } = await query.graph({
  entity: "sales_channel",
  fields: [
    "stock_locations.*",
  ],
})

// salesChannels.stock_locations
```

  </CodeTab>
  <CodeTab label="useQueryGraphStep" value="step">

```ts
import { useQueryGraphStep } from "@medusajs/medusa/core-flows"

// ...

const { data: salesChannels } = useQueryGraphStep({
  entity: "sales_channel",
  fields: [
    "stock_locations.*",
  ],
})

// salesChannels.stock_locations
```

  </CodeTab>
</CodeTabs>

### Manage with Remote Link

To manage the stock locations of a sales channel, use [Remote Link](!docs!/learn/fundamentals/module-links/remote-link):

<CodeTabs group="relation-link">
  <CodeTab label="remoteLink.create" value="method">

```ts
import { Modules } from "@medusajs/framework/utils"

// ...

await remoteLink.create({
  [Modules.SALES_CHANNEL]: {
    sales_channel_id: "sc_123",
  },
  [Modules.STOCK_LOCATION]: {
    sales_channel_id: "sloc_123",
  },
})
```

  </CodeTab>
  <CodeTab label="createRemoteLinkStep" value="step">

```ts
import { Modules } from "@medusajs/framework/utils"
import { createRemoteLinkStep } from "@medusajs/medusa/core-flows"

// ...

createRemoteLinkStep({
  [Modules.SALES_CHANNEL]: {
    sales_channel_id: "sc_123",
  },
  [Modules.STOCK_LOCATION]: {
    sales_channel_id: "sloc_123",
  },
})
```

  </CodeTab>
</CodeTabs>