I deliver subscriptions and memberships (i.e., for Courses) outside ClickFunnels.
Currently, there is no automated way for me to remove a subscription via Workflows (triggered by a tag, for instance).
Similarly, there is no Zapier action in ClickFunnel to cancel (or start a new) subscription.
Therefore, the only way for me to achieve it is manually or by asking the client to cancel their subscription via their client area.