Migrate users from to Crowd Directory

Hello Guys,

We have configured our Crowd server, so, it is reading from Azure AD and creating users and groups in JIRA.
However, we have already a lot of users belonging to JIRA Delegated Authentication Directory and having a lot of objects linked to them (issues, projects,…) as below shows:

In the options that we have in JIRA, we can only migrate users from/to JIRA Delegated Authentication Directory and JIRA Internal Directory.
How to migrate from JIRA Delegated Authentication to Crowd Directory with a transparent way (not affecting any relationship that the user have: e.g. issues, projects…)?



Any updates on the below please?
I appreciate your help.

Thank you,