My team and I have been working on the ability to connect your existing cloud site groups with you IDP groups. We are happy to announce that we shipped this capability today to all customers. Here is a description of how this feature works https://confluence.atlassian.com/cloud/resolve-group-conflicts-before-syncing-users-1014677306.html .
Thanks for voting and commenting on this issue. Your feedback has been incredibly helpful to our team as we’ve worked on bringing this feature to you.
Product Manager, Atlassian Access
SCIM user provisioning: Allow the Organization's directory to pull groups from the integrated Cloud sites in order to use these same groups for management on the Identity Provider.
This would allow Okta to pull the same groups from Atlassian to link with its own groups of users, instead of pushing new groups to a Cloud site to be re-configured on permission level and memberships.
For other IDPs
It would depend on how the Identity Provider handles groups and SCIM integrations.