There is difference LDAP search logic between 12.51 and 12.7 Policy Server.
In 12.7, Login user stored in Dynamic Group is AuthAccept and AzReject, while 12.51 is NOT AzReject, this mean Authenticate/Authorization are succesfully.
Each configuration of CA SSO and LDAP User Store is as following:
Dynamic Group Configuration:
dn: cn=testGroup,ou=groups,o=cajapan,dc=example,dc=com
cn: testGroup
memberURL: ldap:///dc=example,dc=com??sub?(&(employeenumber=dynamic))
objectClass: groupOfUniqueNames
objectClass: groupOfUrls
objectClass: top
Login User Configuration:
login user configuration:
dn: uid=user01,ou=people,o=cajapan,dc=example,dc=com
objectClass: inetOrgPerson
userPassword: passwordsn: testuser
cn: 10330740
givenName: 10330740
employeenumber: dynamic
uid: user01
User Directory Configuration in AdminUI:
<Please see attached file for image>

Domain Policy Configuration in AdminUI:<Please see attached file for image>
smaccess.log:AuthAccept XXXX-XXXX [27/Jun/2018:16:11:29 +0900] "::1 uid=user01,ou=people,o=cajapan,dc=example,dc=com" "XXXX-XXXX-spsagent GET /basic/_dumpvars.asp" [idletime=3600;maxtime=7200;authlevel=5;] [0] [] []
AzReject XXXX-XXXX [27/Jun/2018:16:11:30 +0900] "::1 uid=user01,ou=people,o=cajapan,dc=example,dc=com" "XXXX-XXXX-spsagent GET /basic/_dumpvars.asp" [18763142-f738d707-1043b0dd-a6b138d8-d001a3ee-ab] [0] [] []