A listening program can cancel agreements when destroying the CM listener event object, using a cancel agreements parameter of the calls in
Table 30. All sending CM transports that had certified delivery agreements to the destroyed listener present
REGISTRATION.CLOSED advisories.
A certified sender transport can cancel certified delivery of a specific subject to a specific CM listening transport, using calls in Table 31. The sender transport deletes from its ledger all information about delivery of the subject to the listening transport. The sender presents a
REGISTRATION.CLOSED advisory. If the listening correspondent is available (that is, its program is running and reachable), it presents a
REGISTRATION.NOT_CERTIFIED advisory. (Unlike the disallow listener calls in
Table 32, these calls do not cause denial of subsequent registration requests.)