@adnanbutt0550 my opinion is that NethServer lacks of being “that” rich-feature SMB fileserver.
It works, and it works well, but most of the options and permission granularity are available only with NSDC/AD controller installed. This option currently is incompatible with external LDAP authentication capabilities.
Syncing userbase among Azure and Nethserver, IMVHO is not a good idea, but for someone is a viable option. I don’t know if there’s any kind of tool available for that.
These are personal opinions related to the info gave to me, finding a fitting solution is made of better knowledge of SAMBA and your current environment that currently i don’t have.