Atlassian Access currently does not support nested group but there are identity service providers that supports and can user provision them. It would be good to support handling of user provisioned nested groups by flattening.
If Nested Groups are being pushed in, the following message will be seen in the User Provisioning Troubleshooting Logs:
Example of a Nested Group in Azure AD:
ref. Add or remove a group from another group - Azure Active Directory - Microsoft Docs
At the moment, when a nested group is provisioned, the Child Groups and Members of the nested groups are not provisioned on Atlassian side. Flattening needs to be done on within the Identity Provider:
|Identity provider||How it works||Details and related links|
|Microsoft Azure Active Directory (Azure AD)||
||Available as Early Access Program (EAP)|