***

title: "CustomerChannelAssignmentStrategy"
generated: true
---------------

## CustomerChannelAssignmentStrategy

<GenerationInfo sourceFile="packages/core/src/config/auth/customer-channel-assignment-strategy.ts" sourceLine="38" packageName="@vendure/core" since="3.7.0" />

Determines if an authenticated Customer should be automatically assigned to the current Channel.
Use this to keep customer bases strictly separated in multi-channel or B2B setups.

NOTE: This controls channel membership, not API access. Returning `false`
won't block the request, it just stops the customer from bein assigned to this channel.
(This is skipped on the default channel and during registration/checkout).

*Example*

```ts
// Membership is granted by an admin, never auto-assigned.
class InviteOnlyChannelStrategy implements CustomerChannelAssignmentStrategy {
    canAssignCustomerToChannel() {
        return false;
    }
}
```

:::info

This is configured via the `authOptions.customerChannelAssignmentStrategy` property of your
VendureConfig.

:::

```ts title="Signature"
interface CustomerChannelAssignmentStrategy extends InjectableStrategy {
    canAssignCustomerToChannel(
        ctx: RequestContext,
        customer: Customer,
        channelId: ID,
    ): boolean | Promise<boolean>;
}
```

* Extends: [`InjectableStrategy`](/current/core/reference/typescript-api/common/injectable-strategy#injectablestrategy)

<div className="members-wrapper">

### canAssignCustomerToChannel

\<MemberInfo kind="method" type={`(ctx: <a href='/current/core/reference/typescript-api/request/request-context#requestcontext'>RequestContext</a>, customer: <a href='/current/core/reference/typescript-api/entities/customer#customer'>Customer</a>, channelId: <a href='/current/core/reference/typescript-api/common/id#id'>ID</a>) => boolean | Promise<boolean>`}   />

Return `true` to assign the Customer to the current Channel,
or `false` to let them use it for this session without assigning.

Triggered when an authenticated Customer's request targets a different
Channel than the one currently active on their session. This doesn't run on the default Channel
or if the Customer is already a member of the Channel.

</div>
## DefaultCustomerChannelAssignmentStrategy

<GenerationInfo sourceFile="packages/core/src/config/auth/default-customer-channel-assignment-strategy.ts" sourceLine="12" packageName="@vendure/core" since="3.7.0" />

The default [CustomerChannelAssignmentStrategy](/current/core/reference/typescript-api/auth/customer-channel-assignment-strategy#customerchannelassignmentstrategy): a Customer is auto-assigned to whichever
Channel they authenticate against.

```ts title="Signature"
class DefaultCustomerChannelAssignmentStrategy implements CustomerChannelAssignmentStrategy {
    canAssignCustomerToChannel() => boolean;
}
```

* Implements: [`CustomerChannelAssignmentStrategy`](/current/core/reference/typescript-api/auth/customer-channel-assignment-strategy#customerchannelassignmentstrategy)

<div className="members-wrapper">

### canAssignCustomerToChannel

\<MemberInfo kind="method" type={`() => boolean`}   />

</div>