This is the reverse of How to Convert o365 Group to Security Group?
This is a security group NOT a distribution list in which case I would've done Upgrade distribution lists to Microsoft 365 Groups in Outlook
Or perhaps I just convert "the security group" to "mail-enabled security group" first then do the "upgrade" I would accept that as an answer too. Note this is Office 365 so I don't have Exchange installed locally otherwise I would just do this Mail-enable or mail-disable existing security groups.
How to mail-enable an existing Azure AD security group? tried to go through this intermediate step as well. Though the current answer indicates this is not possible.
I basically want to retain the object ID since some external systems (specifically Sonarqube) uses the Object ID of my security group but I want the members of Developers (which are basically
Internal Developers and
Contractors groups) to be converted so I can use them with Microsoft Teams.
Is it possible?
I also don't have a local AD so I cannot avail of AD Group and Distribution Group with O365