I'm glad that you were able to resolve your issue and thank you for posting your solution so that others experiencing the same thing can easily reference this!
- Since the Microsoft Q&A community has a policy that "The question author cannot accept their own answer. They can only accept answers by others", I'll repost your solution in case you'd like to accept the answer.
Issue:
Azure Active Directory Data Connector not in content hub I have set up many sentinel instances, but I have recently started building a personal one and the data connector for AAD is no longer there in the solution.
Solution:
Based off your findings, you were able to see that the Azure AD Connector was removed and later re-added.
Microsoft Sentinel - Azure Active Directory Release Notes
They removed the data connector and have added it back in the newer version!
- If I missed anything please let me know and I'd be happy to add it to my answer, or feel free to comment below with any additional information.
I hope this helps!
If you have any other questions, please let me know. Thank you again for your time and patience throughout this issue.