No, they are not synchronized.
Changing the password in either Entra ID (formerly Azure AD) or Teachme Biz will not synchronize the password.
Related:
Change password (Web browser)
https://teachme.jp/8/manuals/4554233
Are Entra ID (formerly Azure AD) passwords and Teachme Biz passwords synchronized with user provisioning?
2022-03-17 04:27:13 UTC
2026-02-02 12:52:43 UTC