How to Change Account (IMAP, Caldav, etc) Username Settings?

Hi Hello,

the account details of my e-mail account changed - that is the username. all other details (e-mail address, password, domain) stayed identical. I can find no way to change the username - the field Username in Settings / Edit Account is not editable on my Blackberry Q10 (10.3.1.1779)

Is there a way around it?

Username is the email address.

Posted with my  Classic

I know that - but I can't edit it!

Delete and readd your account.

Via Pasta CB10

wanted to avoid it as it will delete all data linke dto that account.