After implementing new LMP keys, used the CAIRIMU PROD command to view detailed licensing information about the installed CA products...
==> CAIRIMU PROD
Two lines of the output include the following information:
CAS9087I PROD (xx) VIOLS|WARNS/STAT(001/Y) WARNSTART(******<NA>******)
CAS9088I EXPIRY1(******<NA>******) EXPIRY2(******<NA>******)
Release : 15.0
Component : CA Resource Initialization Manager(Comm)
A product LMP check was made for a product/feature for which no LMP key has been loaded. This is why WARNSTART/EXPIRY1/EXPIRY2 contain no values.