Function addUserToSubscriptionGroup

addUserToSubscriptionGroup(
subscriptionGroupId: string,
): Promise<boolean | undefined>
Adds a user to an email or SMS subscription group.
Parameters
- subscriptionGroupId: string
  The unique identifier of the subscription group.
Returns Promise<boolean | undefined>
Resolves to a boolean that indicates whether the update was successfully enqueued. Resolves to undefined if the SDK is not initialized.
- Defined in core/add-user-to-subscription-group.ts:12