Hi Elham,
Thanks for your reply.
Based on the information provided, we need to let the affected local AD be synchronized to Office 365 to re-enable the Office 365 mailbox.
Given this situation, I would like to collect the following detailed information.
1. Have you changed some configurations about his attributes, such as email addresses, in the local AD recently? If yes, could you please provide more detailed information about the configurations changed?
2. You mentioned “the export process of Windows Azure gives an error stating the cloudAnchor attribute is missing”. Could you please provide a screenshot about the error message?
As a tip, you can provide some screenshots about the information above. Please click Use rich formatting> Insert image to upload the screenshots in the post manually.
Thanks,
Claud