delete https://{hostname}/papi/v1/includes//activations/
Limited availability. If you detect a problem with an include version while its activation is still PENDING, use this operation to cancel it. Make a DELETE request on the activationLink you get from the Activate an include operation's response. Once you DELETE the activation, it no longer appears in the list of activations, but you can still access it individually.
Recipes
Cancel a pending include activation
Open Recipe