I was setting a password for a new account in the databricks management page, and when I attempted to add a password of 50 characters, the prompt said "password must be no more than 50 characters" (bold added by me for emphasis). It would only accept a password of 49 or fewer characters.
This is a language mistake in the UI -- it should say "password must be fewer than 50 characters", or it should accept a 50-character password.