I'm trying to update a staff account with an email but its saying it's already in use. I looked in the database (ost_staff) and can confirm no other staff account has this email address.
@phaelax
The email must be setup as a System Email under Admin Panel > Emails > Emails.
Cheers.
Yup you were right.
I'll mark this thread as resolved and close the thread. Please feel free to start a new thread if you have another question. 🙂