CA Jclchk 12.0 isn't able by default to expand a GDG relative dsname level to the corresponding GDG  absolute name.
For example, if in a jcl there is a // DD referencing a GDG level as  DSN=CNTR.EOBJ.FOBJECTI(0),  the !JCK command on this jcl is not able to expand this dsname as something looking like CNTR.EOBJ.FOBJECTI.GxxxxV00 (the same happens also in a batch scan of the jcl).

One of our customers submitted an idea asking for CA JCLCheck being able to expand the GDG relative dsname levels when !JCK is executed and to detail this in a new message evidencing the GDG absolute dsname level. 

Z/OS - JCLCheck 12.0 

The idea has been accepted and Test APAR ST03870 has been developed and tested successfully by the customer.

With this apar applied a new message, CAY6572I, is being added to display the resolved G????V00 name for GDG datasets.
The 572 message can be suppressed  unwanted using MCO or the other message control methods.             
Sample of the new message:                                            
CAY6572I  GDG Resolved Name: 'GDG.DSN.NAME.G????V00'                  

Here a sample output from !JCK command with the Test APAR applied:

.AAABE //DDE DD DISP=SHR,DSN=EHMLG.AAFIA.AAFICOUR(0) 
==MSG> //DDE DD DISP=SHR,DSN=EHMLG.AAFIA.AAFICOUR(0) 
==MSG> CAY6572I GDG RESOLVED NAME: "EHMLG.AAFIA.AAFICOUR.G0003V00" 
==MSG> 

 

The correction is now GA as SO03870.
In order to suppress the message if unwanted, it is possible to code 

572,-1

in a sequential file or PDS member and then reference it in Runtime Option MCOSYS or MCOUSR, following the details we provide in Reference Guide for these options.