Contacts added to wrong account
I accidentally added a bunch of contacts to the wrong account when it was set as default. I want to be sure ALL my contacts are on my default account, but do not want all of them shared to the other accounts (e.g., personal contacts and notes should not be synced to my work exchange account).
What's the most straightforward way to isolate those contacts found ONLY on the exchange account so I can copy them to the primary account and delete those that do not belong from my exchange account?
My primary Mac to which I sync everything has limited access to my exchange account but phone has everything.
iPhone 12 mini