I have an issue with email addresses (username) not sync-ing with AAD and DevOps organisations.
I had some email addresses in mixed case (upper & lower) in the AAD, but made them all lowercase subsequently. But in DevOps organisations they still show in mixed case. I tried deleting these users from the DevOps organisation and adding them back, but this still doesn't update.
I use third party application to sync tasks from project online to DevOps but this application needs emails in lower case to sync tasks for each resource.