Your name and email address are in Settings under Profile Information.

A "Saved." confirmation appears when the change goes through.

This is how you're greeted on your dashboard and how we address you in emails. Required, and up to 255 characters.

This is both your sign-in address and where everything from us is sent — monthly reports, notifications, and password resets. It must be unique, so if another account already uses that address, the change will be rejected.

Make sure you can actually receive mail at the new address. If you change to an address you can't access and then forget your password, you'll have no way to reset it without contacting support.

Changing your email here doesn't change your Google account. If the two addresses no longer match, Google sign-in may stop working — use your password instead, or keep the addresses aligned.

The email is already taken — you may have a second account under that address. Contact support and we'll help you sort out which to keep.

Nothing saves — check that neither field is empty. Both are required.

You see an unverified email warning — you can safely ignore it. Email verification isn't currently required, and it won't affect your access.

That's a separate section in Settings. See Changing your password.