The operation couldn’t be completed. (com.apple.accounts error 3.)
The problem has been posted by others, but I have not found a solution that works.
When trying to add an Exchange account to Mail I receive this error: The operation couldn’t be completed. (com.apple.accounts error 3.)
I entered my exchange email address, password, and multi-factor authentication code. Then, this error message appears.
I have successfully added the exchange email, calendar, notes, reminders to my IOS devices.
Please help.
-Steve
MacBook Pro 13″, macOS 12.4