You can manually grant access to a subscription, content, or bundle for customers. Granting access to bundles or content will provide access for free. Granting access to a subscription plan will provide free access until the next invoice date.
Navigate to the person you want to grant access for under People > People and click Edit.
Then click any of the 3 options under the Access section: Subscriptions, Content, or Bundles.
Remember, bundles and content that are granted manual access are provided free while subscriptions are free until the next invoice date.