If a subscriber removes a subscription initiated by the publisher, the subscribing server removes the subscription from its subscriptions list, but the subscription is not immediately removed from the publisher's list. Instead, the next time the publishing server tries to send the package to the subscriber, the publisher is notified of the removal and then deletes the subscription from the publisher's list.

If the subscriber is running when you remove it from the subscriber list, the publisher tells the subscriber it has been removed. However, if the subscriber is not running, the subscriber will not know the subscription has been canceled. In this case, you should manually delete the subscription from the subscriber server later when it is available.