Hello Atlassian Community!
Once in a while it happens that I need your advice too 
Use-Case
We use Jira 7, Confluence 6 and Bitbucket 5. User account management is performed via Jira User Management (Confluence and BB are connected to Jira). We decided to connect the applications to Microsoft Active Directory using LDAP.
Question is
What happens to users in Bitbucket and Confluence when I connect Jira to LDAP?
I know that we need to remap all Username to AD Username for the connection to work properly, but I don't know if it is possible to connect only Jira to AD and then control access to Confluence and Bitbucket also from Jira? Or is it necessary to connect each application separately (we also plan to do this)?
Thank you
Cheers
Pavel