Yes. If you can’t be available on the time and date to meet with the citizenship judge or officer as needed when applying for citizenship, you must make sure you inform the office where you were to appear. You will also need to provide the reasons why you can’t be able to appear.
The notice, which will ask you to appear, will have the details of:
How you should notify the office.
What happens if you fail to attend the hearing?
Either the notice will arrive by paper notice in the usual mail or the email address that you provided on the application form.