I have migrated Sharepoint 2013 Farm which is joined to Local AD DS to Sharepoint 2016 Farm joined to AzureAD DS.
Client wants to take full use of AzureAD DS and want to migrate sharepoint farm to Azure VMs connected to AzureAD DS.
I created a Sharepoint 2016 farm. created normal webapp/Site collection and is able to access as expected.
When I attach sharepoint 2013 DB after upgrade it gives access denied to those upgrade web app.
Do I need to do any changes to existing usernames as they has been now talking to AzureAD DS instead of Local AD.