ACF2 message ACF89810 UNABLE TO IMPLANT DELETE CDE HOOK is received after upgrading to z/OS 3.2.
IBM fix OA66032 has updated CSVSBRTN that causes ACF2 to not be able to implant one of its hooks in the system. This will also impact z/OS 3.2 migrations. ACF2 PTF LU16693 addresses the ACF89810 message.