Hello David,
The documentation for alert 1212 states:
"To generate this alert, RACF® successful read and update access must be recorded. This is the case if either AUDIT(success(read)) or GLOBALAUDIT(success(read)) is specified for the relevant profiles. When you change the audit settings for a profile, ensure that failure auditing is also set as intended."
and for alert 1213
"To generate this alert, RACF® successful update access must be recorded. This is the case if either AUDIT(success(update)) or GLOBALAUDIT(success(update)) is specified for the relevant profiles. When you change the audit settings for a profile, ensure that failure auditing is also set as intended."
Have you enabled audit event recording for the dataset profile protecting A.B.C.D?