Such question may araise when planning to Migrate datasets PDS and PDSe on a EAV (extended address volume).
Does Endevor work with Extended Addressability Volumes (EAV) devices?
Release: ENDAE.00200-14-Endevor-Software Change Manager
Endevor does support extended addressability volumes and should find no problem to handle datasets residing in the cylinder-managed part of these devices.
Endevor 12.0 and earlier don't support EAS datasets.
If you are running LServ to manage Endevor files, you may need to apply PTFs.
Please check information about CA Common Services at chapter Software Requirements for Web Services